Module 10 - Integrated Clinical Case Clusters

1

Acute Coronary Syndrome

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 58-year-old man presents with 45 minutes of central chest pressure that began while he was carrying groceries. The discomfort radiates to his left arm and jaw and is associated with diaphoresis, nausea, and shortness of breath. Medical history includes type 2 diabetes, hypertension, dyslipidemia, and erectile dysfunction. Medications: • Metformin • Ramipril • Rosuvastatin • Sildenafil as needed • Fish oil Vital signs: • BP: 154/92 mmHg • HR: 104/min • RR: 22/min • SpO₂: 95% on room air • Temperature: 36.8°C He appears pale and diaphoretic. Cardiac examination reveals no murmur. Lungs are clear. ECG demonstrates horizontal ST-segment depression in leads V4–V6. High-sensitivity troponin is elevated.

Question 1 of 5NPLEX-ICC-001

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-002

What is the most appropriate immediate action in the naturopathic clinic?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-003

Which investigation is most appropriate for assessing evolving myocardial injury?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-004

Which medication history is particularly important before administering nitroglycerin?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-005

Which naturopathic recommendation is most appropriate during the acute presentation?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: NSTEMI. Key differentials: Unstable angina, aortic dissection, pulmonary embolism, pericarditis, pneumothorax, esophageal rupture, reflux. Key investigations: Serial ECG, serial troponin, CBC, electrolytes, renal function, glucose, coagulation studies, chest imaging when indicated, and coronary angiographic assessment according to risk. Treatment: Emergency transfer, aspirin when appropriate, anticoagulation and antiplatelet therapy, high-intensity statin therapy, anti-ischemic treatment, and timely invasive assessment. Naturopathic role: Secondary prevention after stabilization may include smoking cessation, Mediterranean-style dietary counselling, exercise rehabilitation, sleep assessment, and medication-adherence support. Pharmacology safety: Verify PDE5 inhibitor use before nitrates. Review supplements that may increase bleeding when combined with antiplatelets or anticoagulants. Referral: Immediate emergency transfer. Clinical pearl: A normal initial examination does not exclude myocardial infarction. NPLEX trap: Do not treat presumed anxiety, reflux, or musculoskeletal pain before excluding ACS in a high-risk patient. Guideline basis: Acute coronary syndrome includes unstable angina and myocardial infarction and requires prompt evidence-based emergency management. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American Heart Association and American College of Cardiology. Current evidence-based cardiovascular emergency and disease-specific clinical practice guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

2

Severe Asthma Exacerbation

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 26-year-old woman with asthma presents with worsening wheezing and breathlessness after developing an upper-respiratory infection. She has used her salbutamol inhaler every hour without sustained relief. She takes no inhaled corticosteroid. She recently started propranolol for migraine prevention. Vital signs: • BP: 138/84 mmHg • HR: 126/min • RR: 30/min • SpO₂: 90% on room air • Temperature: 37.5°C She speaks in short phrases and uses accessory muscles. Diffuse expiratory wheezing is present. Peak expiratory flow is approximately 40% of her personal best.

Question 1 of 5NPLEX-ICC-006

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-007

What is the most appropriate immediate management?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-008

Which current medication may be worsening the asthma?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-009

After recovery, which long-term treatment principle is most appropriate?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-010

Which finding would be especially concerning for impending respiratory failure?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Severe acute asthma exacerbation. Key differentials: Anaphylaxis, pulmonary embolism, pneumonia, pneumothorax, vocal-cord dysfunction, foreign-body aspiration, panic disorder. Key investigations: Pulse oximetry, serial peak flow or FEV₁ when feasible, blood gas in severe or deteriorating cases, and chest radiography when another diagnosis is suspected. Treatment: Oxygen, repeated inhaled bronchodilator, systemic corticosteroid, addition of inhaled anticholinergic therapy in severe cases, and possible intravenous magnesium in refractory severe exacerbation. Naturopathic role: After recovery, address tobacco or vaping exposure, allergens, adherence, inhaler technique, weight, sleep, and trigger identification. Pharmacology safety: Avoid or carefully assess nonselective beta-blockers. Excessive short-acting beta₂-agonist use indicates inadequate control and increases adverse-effect risk. Referral: Immediate emergency transfer for hypoxemia, severe airflow limitation, exhaustion, altered consciousness, or poor response to initial treatment. Clinical pearl: Wheezing may become quieter as airflow becomes critically restricted. NPLEX trap: A “silent chest” is not improvement. GINA recommends inhaled corticosteroid-containing treatment to reduce severe exacerbations and death, with acute exacerbations managed according to severity. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Global Initiative for Asthma. Global Strategy for Asthma Management and Prevention. Current edition.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

3

SGLT2-Inhibitor-Associated Euglycemic DKA

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 45-year-old woman with type 2 diabetes presents with nausea, vomiting, diffuse abdominal pain, and rapid breathing. She has had influenza-like symptoms for three days and has eaten very little. Medications: • Empagliflozin • Metformin • Insulin glargine She stopped insulin two days ago because she was not eating but continued empagliflozin. She has also been following a very-low-carbohydrate diet. Vital signs: • BP: 96/62 mmHg • HR: 118/min • RR: 28/min with deep respirations • Temperature: 37.8°C Laboratory results: • Glucose: 11.4 mmol/L • Bicarbonate: 12 mmol/L • Anion gap: elevated • Venous pH: 7.23 • Beta-hydroxybutyrate: markedly elevated • Potassium: 4.9 mmol/L

Question 1 of 5NPLEX-ICC-011

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-012

Which combination most likely precipitated this event?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-013

What is the most appropriate management?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-014

Why must potassium be monitored closely after insulin treatment begins?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-015

What is the best “sick-day” teaching after recovery?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: SGLT2-inhibitor-associated euglycemic DKA. Key differentials: Starvation ketosis, alcoholic ketoacidosis, sepsis-associated lactic acidosis, toxic ingestion, pancreatitis, HHS. Key investigations: Glucose, electrolytes, bicarbonate, anion gap, venous or arterial pH, beta-hydroxybutyrate, renal function, urinalysis, ECG, and evaluation for infection. Treatment: Emergency fluids, insulin, electrolyte replacement, frequent laboratory monitoring, and management of the precipitating condition. Naturopathic role: No botanical or dietary glucose-lowering intervention is appropriate during DKA. After recovery, provide safe nutrition counselling that does not encourage extreme carbohydrate restriction without diabetes-team supervision. Pharmacology safety: Stop the SGLT2 inhibitor during the acute event. Never advise insulin omission solely because the patient is not eating without a clinician-directed sick-day plan. Referral: Immediate emergency transfer. Clinical pearl: A near-normal glucose level does not exclude DKA. NPLEX trap: Do not dismiss ketosis because glucose is below the usual DKA range. Current diabetes standards recognize euglycemic DKA as a potentially serious complication associated with SGLT2-inhibitor treatment. DKA treatment centers on fluids, insulin, electrolytes, and correction of the precipitating cause. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American Diabetes Association. Standards of Care in Diabetes. Current edition.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

4

Pyelonephritis During Pregnancy

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 28-year-old patient at 18 weeks’ gestation presents with fever, chills, right-sided flank pain, nausea, urinary frequency, and dysuria. Vital signs: • BP: 102/66 mmHg • HR: 118/min • RR: 22/min • Temperature: 39.1°C There is marked right costovertebral-angle tenderness. Urinalysis shows: • Positive leukocyte esterase • Positive nitrites • Pyuria • Bacteriuria

Question 1 of 5NPLEX-ICC-016

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-017

Which test should be obtained to guide antimicrobial treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-018

What is the most appropriate management?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-019

Why is nitrofurantoin not the preferred treatment for pyelonephritis?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-020

Which naturopathic recommendation is most appropriate?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Acute pyelonephritis in pregnancy. Key differentials: Cystitis, nephrolithiasis, appendicitis, cholecystitis, placental complications, musculoskeletal pain. Key investigations: Urinalysis, urine culture, CBC, renal function, electrolytes, blood cultures if septic, and renal ultrasound when obstruction is suspected. Treatment: Prompt pregnancy-compatible antibiotic therapy, hydration, antiemetic treatment, fever control, and monitoring for sepsis and obstetric complications. Naturopathic role: Maintain hydration and nutrition as tolerated. Avoid unverified antimicrobial botanicals in pregnancy and do not delay antibiotics. Pharmacology safety: Nitrofurantoin and fosfomycin should not be selected to treat renal parenchymal infection. Antibiotic choice should account for pregnancy, allergy, renal function, local resistance, and culture results. Referral: Urgent hospital assessment. Clinical pearl: Fever and CVA tenderness move the diagnosis from lower UTI toward pyelonephritis. NPLEX trap: Cranberry may be discussed in prevention contexts, but it is not a treatment for acute pyelonephritis. Acute pyelonephritis is a bacterial infection requiring an antibiotic that reaches therapeutic concentrations in the kidney; pregnancy and systemic illness require a low threshold for hospital assessment. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Society of Obstetricians and Gynaecologists of Canada and/or American College of Obstetricians and Gynecologists. Current guidance relevant to this obstetric or gynecologic emergency.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

5

Iron-Deficiency Anemia and Occult Gastrointestinal Blood Loss

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 62-year-old man reports six months of fatigue, reduced exercise tolerance, and intermittent light-headedness. He denies visible blood in the stool. He regularly uses naproxen for chronic knee pain. Physical examination reveals conjunctival pallor. Laboratory results: • Hemoglobin: 94 g/L • MCV: 72 fL • RDW: elevated • Ferritin: 8 ng/mL • Transferrin saturation: low • Platelets: mildly elevated

Question 1 of 5NPLEX-ICC-021

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-022

What is the most important next diagnostic step?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-023

Which medication may be contributing to the anemia?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-024

Which instruction can improve oral iron absorption?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-025

Which finding would require more urgent assessment?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Iron-deficiency anemia, potentially due to chronic occult gastrointestinal blood loss. Key differentials: Anemia of chronic inflammation, thalassemia, sideroblastic anemia, chronic kidney disease, mixed nutritional deficiency, gastrointestinal malignancy. Key investigations: CBC, reticulocyte count, ferritin, transferrin saturation, peripheral smear, renal and liver function, celiac testing when appropriate, and gastrointestinal evaluation. Gold-standard investigation: There is no single universal gold-standard test for the cause. Endoscopic evaluation is important in appropriate adult patients. Treatment: Identify and treat the source, discontinue or reduce contributing NSAID exposure when medically appropriate, replace iron, and monitor hemoglobin and iron stores. Naturopathic role: Provide an iron-containing diet, address reduced intake, and assess factors impairing absorption. Diet alone is generally inadequate for marked symptomatic deficiency. Pharmacology safety: Oral iron can cause constipation, nausea, and dark stool. Keep iron products securely stored because overdose can be fatal, particularly in children. Referral: Gastroenterology referral; urgent referral for instability, active bleeding, chest pain, syncope, or severe symptoms. Clinical pearl: Iron deficiency in an older adult is a diagnosis and a clue to an underlying cause. NPLEX trap: Do not prescribe iron indefinitely without investigating blood loss. AGA guidance supports gastrointestinal evaluation of iron-deficiency anemia and recommends a ferritin threshold that improves diagnostic sensitivity in anemic patients. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American College of Gastroenterology, American Gastroenterological Association, and/or American Association for the Study of Liver Diseases. Current guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

6

Cauda Equina Syndrome

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 47-year-old warehouse worker developed severe lower-back pain after lifting a heavy box. During the past 24 hours, the pain has begun radiating down both legs. He now reports: • Numbness around the perineum • Difficulty initiating urination • Overflow urinary leakage • Bilateral leg weakness Examination demonstrates reduced ankle reflexes, decreased perianal sensation, and reduced anal sphincter tone. A distended bladder is palpable.

Question 1 of 5NPLEX-ICC-026

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-027

What is the most appropriate next step?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-028

Which investigation is most appropriate?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-029

Which intervention is contraindicated before emergency evaluation?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-030

Which feature most clearly distinguishes this condition from uncomplicated mechanical low-back pain?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Cauda equina syndrome. Key differentials: Large central disc herniation, spinal epidural abscess, malignancy, hematoma, severe spinal stenosis, transverse myelitis. Key investigations: Complete neurologic examination, bladder assessment, urgent MRI, CBC and inflammatory markers when infection is suspected, and coagulation studies when bleeding is possible. Treatment: Emergency spinal surgical evaluation and decompression when compression is confirmed. Naturopathic role: None before emergency assessment. Manual therapies, acupuncture, exercise prescription, and hydrotherapy are inappropriate during suspected cauda equina syndrome. Pharmacology safety: Analgesia must not create a delay in imaging or referral. Review anticoagulants because spinal hematoma is a possible cause. Referral: Immediate emergency transfer. Clinical pearl: Asking specifically about urinary retention, saddle sensation, and bowel function is essential in acute bilateral sciatica. NPLEX trap: “Back pain after lifting” does not automatically mean a benign lumbar strain. NICE resources identify cauda equina syndrome as severe nerve compression requiring emergency pathways, urgent imaging access, and spinal service referral. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American Academy of Neurology, American College of Radiology, and/or relevant emergency neurology guidance. Current recommendations relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

7

Major Depression With Acute Suicide Risk

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 29-year-old woman presents with eight weeks of depressed mood, loss of interest, insomnia, guilt, poor concentration, low appetite, and reduced work performance. She states: “Everyone would be better without me.” On further questioning, she reports planning to take an overdose of prescription medication that night. She has collected several bottles of medication and written a goodbye message. She lives alone and consumed several alcoholic drinks before the appointment.

Question 1 of 5NPLEX-ICC-031

What is the most likely primary psychiatric diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-032

How should her current suicide risk be classified?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-033

What is the most appropriate immediate action?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-034

She recently started St. John’s wort and has a prescription for sertraline that she has not yet started. What is the most important concern?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-035

Which naturopathic intervention is appropriate during this crisis?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Major depressive episode with high acute suicide risk. Key differentials: Bipolar depression, substance-induced mood disorder, adjustment disorder, psychotic depression, hypothyroidism, medication-induced depression. Key assessment domains: Current thoughts, intent, plan, access to lethal means, preparatory actions, prior attempts, substance use, agitation, psychosis, recent losses, protective factors, supports, and ability to maintain safety. Treatment: Continuous supervision during transfer, emergency psychiatric assessment, lethal-means restriction, treatment of intoxication when relevant, and development of an individualized safety plan after stabilization. Naturopathic role: Support sleep, nutrition, physical activity, and behavioural treatment only as components of a comprehensive plan after acute safety has been established. Pharmacology safety: Screen for bipolar disorder before initiating antidepressant therapy. Review St. John’s wort for serotonergic and metabolic drug interactions. Referral: Immediate emergency psychiatric assessment. Clinical pearl: Asking directly about suicide does not create suicidal thoughts; it is necessary for assessment. NPLEX trap: A promise not to self-harm does not make an actively suicidal patient safe for discharge. The VA/DoD guideline recommends comprehensive assessment of suicidal thoughts and behaviours, psychiatric symptoms, adverse life events, substance-related factors, access to lethal means, and protective factors. Safety planning and reducing lethal-means access are central interventions. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Current psychiatric emergency and suicide-risk guidance from recognized professional organizations, including the VA/DoD or American Psychiatric Association as applicable.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

8

Ruptured Ectopic Pregnancy

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 31-year-old woman presents with sudden severe left lower-abdominal pain, vaginal spotting, dizziness, and right shoulder-tip pain. Her last menstrual period was seven weeks ago. Vital signs: • BP: 82/50 mmHg • HR: 132/min • RR: 26/min • SpO₂: 96% • Temperature: 36.7°C She is pale and diaphoretic. Abdominal examination reveals guarding and rebound tenderness. A urine pregnancy test is positive. Point-of-care ultrasound shows free intraperitoneal fluid and no confirmed intrauterine pregnancy.

Question 1 of 5NPLEX-ICC-036

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-037

What is the most appropriate immediate management?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-038

Why is methotrexate not the appropriate initial treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-039

Which additional test is important for transfusion planning and prevention of Rh alloimmunization when applicable?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-040

Which naturopathic treatment is appropriate before emergency transfer?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Ruptured tubal ectopic pregnancy causing hemorrhagic shock. Key differentials: Miscarriage, ruptured ovarian cyst, ovarian torsion, appendicitis, pelvic inflammatory disease, renal colic. Key investigations: Pregnancy test, quantitative beta-hCG, transvaginal ultrasound, CBC, blood group and Rh type, crossmatch, coagulation studies, and serial vital signs. Treatment: ABC stabilization, large-bore intravenous access, blood products when indicated, urgent obstetric or gynecologic consultation, and surgery. Naturopathic role: None during the emergency. No abdominal manipulation, hydrotherapy, homeopathy, or botanical treatment should delay transfer. Pharmacology safety: Methotrexate is reserved for selected stable patients. It requires careful eligibility assessment, monitoring, and avoidance of interacting substances. Referral: Immediate emergency transfer. Clinical pearl: Shoulder-tip pain in early pregnancy can indicate diaphragmatic irritation from intraperitoneal blood. NPLEX trap: Do not wait for a very high beta-hCG concentration before acting in an unstable patient. ACOG states that ectopic pregnancy in an unstable patient is a medical emergency requiring prompt surgical intervention; medical management is reserved for appropriately selected stable cases. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Society of Obstetricians and Gynaecologists of Canada and/or American College of Obstetricians and Gynecologists. Current guidance relevant to this obstetric or gynecologic emergency.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

9

Moderate-to-Severe Viral Croup

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 2-year-old boy is brought to an urgent-care clinic at night because of a barking cough, hoarse voice, and noisy breathing. He has had nasal congestion and a low-grade fever for two days. He now has inspiratory stridor while sitting quietly and moderate intercostal retractions. Vital signs: • HR: 148/min • RR: 38/min • SpO₂: 93% on room air • Temperature: 38.0°C He is anxious but alert. There is no drooling, tripod positioning, or history of choking.

Question 1 of 5NPLEX-ICC-041

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-042

What is the most appropriate treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-043

Why must the child be observed after nebulized epinephrine?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-044

Which finding would increase concern for epiglottitis or another dangerous upper-airway disorder?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-045

Which home recommendation is most appropriate after medical stabilization and discharge?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Moderate-to-severe viral croup. Key differentials: Epiglottitis, bacterial tracheitis, foreign-body aspiration, anaphylaxis, retropharyngeal abscess, airway trauma. Key investigations: Croup is usually a clinical diagnosis. Imaging and blood tests are not routinely needed when the presentation is typical. Treatment: Minimize agitation, administer dexamethasone, use nebulized epinephrine for stridor at rest or significant distress, provide oxygen when needed, and observe response. Naturopathic role: Calm positioning and fluids after stabilization may be helpful. Steam, essential oils, homeopathy, and supplements must not delay airway treatment. Pharmacology safety: Avoid sedating cough medications that may impair respiratory assessment. Antibiotics are not indicated for uncomplicated viral croup. Referral: Emergency transfer for severe distress, cyanosis, altered consciousness, poor air entry, exhaustion, atypical presentation, or inadequate response. Clinical pearl: Stridor is an upper-airway sound; wheezing is generally a lower-airway sound. NPLEX trap: A child with stridor at rest does not have “mild” croup. Official pediatric resources describe croup as viral upper-airway swelling producing barking cough, hoarseness, and stridor; children with noisy breathing at rest or respiratory difficulty need prompt assessment. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Canadian Paediatric Society and/or American Academy of Pediatrics. Current pediatric guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

10

Orthostatic Hypotension, Polypharmacy, and Fall Risk

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 78-year-old man presents after becoming dizzy when standing and falling in his bathroom. He did not lose consciousness but struck his elbow. Medical history: • Hypertension • Benign prostatic hyperplasia • Insomnia • Osteoarthritis Medications and supplements: • Amlodipine • Hydrochlorothiazide • Tamsulosin • Diphenhydramine nightly for sleep • Valerian • Ibuprofen as needed Examination: • Supine BP: 138/74 mmHg • Standing BP after two minutes: 104/62 mmHg • Supine HR: 72/min • Standing HR: 88/min He reports poor fluid intake during a recent heat wave.

Question 1 of 5NPLEX-ICC-046

What is the most likely explanation for his dizziness?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-047

Which factor is most likely contributing?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-048

Which medication is potentially inappropriate as a routine sleep aid in this older adult?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-049

What is the most appropriate management approach?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-050

Which naturopathic recommendation is most appropriate after serious causes are excluded?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Symptomatic orthostatic hypotension with medication- and dehydration-related fall risk. Key differentials: Cardiac arrhythmia, aortic stenosis, anemia, occult bleeding, infection, hypoglycemia, vestibular disease, autonomic neuropathy, stroke. Key investigations: Orthostatic vital signs, ECG, CBC, electrolytes, renal function, glucose, medication review, gait and balance assessment, and injury evaluation. Treatment: Correct dehydration, address contributing illness, review medications, implement fall-prevention measures, and treat the underlying cause. Naturopathic role: Hydration, adequate protein and nutrition, supervised resistance and balance exercise, footwear assessment, and home-safety counselling. Pharmacology safety: Avoid combining multiple sedating agents. Do not abruptly stop essential antihypertensives without individualized review. Referral: Emergency evaluation for syncope during exertion, chest pain, focal neurologic signs, major injury, severe bleeding, persistent hypotension, or suspected arrhythmia. Clinical pearl: Falls are often multifactorial; identifying one medication does not end the assessment. NPLEX trap: Do not assume dizziness in an older adult is automatically benign positional vertigo. The American Heart Association defines orthostatic hypotension as a sustained fall of at least 20 mmHg systolic or 10 mmHg diastolic within three minutes of standing. AGS criteria identify diphenhydramine as generally inappropriate for routine use in older adults, while CDC fall-prevention resources emphasize medication review and modifiable-risk assessment. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Current evidence-based specialty guideline or consensus statement relevant to the diagnosis, stabilization, treatment, monitoring, and referral decisions in this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

11

Acute Pulmonary Embolism

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 42-year-old woman presents with sudden-onset shortness of breath and right-sided pleuritic chest pain. She returned two days ago from a 10-hour international flight. She takes a combined estrogen-containing oral contraceptive. Vital signs: • BP: 108/68 mmHg • HR: 118/min • RR: 28/min • SpO₂: 89% on room air • Temperature: 37.2°C Examination demonstrates anxiety, tachypnea, clear lung fields, and mild swelling and tenderness of the left calf. ECG shows sinus tachycardia.

Question 1 of 5NPLEX-ICC-051

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-052

What is the most appropriate immediate action?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-053

Which investigation is generally preferred to confirm pulmonary embolism in a hemodynamically stable, nonpregnant adult?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-054

When is a D-dimer test most clinically useful?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-055

Which naturopathic recommendation is appropriate during the acute presentation?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Acute pulmonary embolism, probably arising from left-leg DVT. Key differentials: Acute coronary syndrome, pneumothorax, pneumonia, pericarditis, aortic dissection, panic attack, musculoskeletal chest pain. Key investigations: Clinical probability assessment, pulse oximetry, ECG, chest radiography, D-dimer when appropriate, CT pulmonary angiography, renal function, CBC, coagulation profile, and pregnancy testing when relevant. Treatment: Emergency assessment, oxygen when indicated, anticoagulation, and hemodynamic support. Patients with shock or persistent hypotension may require advanced reperfusion treatment. Naturopathic role: After stabilization, support gradual activity, weight management, smoking cessation, adherence to anticoagulation, and avoidance of prolonged immobility. Pharmacology safety: Review all supplements for antiplatelet or anticoagulant effects. The patient’s estrogen-containing contraceptive requires reassessment. Referral: Immediate emergency transfer. Clinical pearl: Clear lung fields do not exclude a serious pulmonary vascular emergency. NPLEX trap: Do not diagnose anxiety before excluding pulmonary embolism in a hypoxemic patient with risk factors. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
European Society of Cardiology, American Society of Hematology, and/or CHEST. Current venous thromboembolism guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

12

Acute Esophageal Variceal Hemorrhage

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 56-year-old man with alcohol-associated cirrhosis presents with large-volume hematemesis and black stools. He has a history of ascites and previously identified esophageal varices. Vital signs: • BP: 86/54 mmHg • HR: 126/min • RR: 24/min • SpO₂: 94% • Temperature: 37.0°C He is pale, confused, and diaphoretic. His abdomen is distended, and splenomegaly is present. Laboratory findings: • Hemoglobin: 78 g/L • Platelets: 72 × 10⁹/L • INR: 1.7 • Albumin: low • Bilirubin: elevated

Question 1 of 5NPLEX-ICC-056

What is the most likely cause of bleeding?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-057

What is the most appropriate immediate management?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-058

Which hospital treatment combination is most appropriate for suspected variceal hemorrhage?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-059

Which analgesic is most concerning in this patient?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-060

Which statement about botanical treatment is most appropriate?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Acute esophageal variceal hemorrhage causing hemorrhagic shock. Key differentials: Peptic-ulcer bleeding, erosive gastritis, Mallory–Weiss tear, gastric varices, portal hypertensive gastropathy, malignancy. Key investigations: CBC, blood type and crossmatch, coagulation profile, renal and liver function, electrolytes, lactate, serial hemoglobin, and urgent upper endoscopy. Treatment: ABC stabilization, intravenous access, appropriate transfusion strategy, vasoactive medication, antibiotics, urgent endoscopic therapy, and rescue TIPS or another intervention when bleeding remains uncontrolled. Naturopathic role: After stabilization, support alcohol abstinence, adequate nutrition, sodium guidance, medication adherence, and avoidance of hepatotoxic or bleeding-promoting supplements. Pharmacology safety: Avoid NSAIDs. Review sedatives, anticoagulants, antiplatelets, and supplements that increase bleeding. Referral: Immediate emergency transfer. Clinical pearl: In cirrhosis, gastrointestinal bleeding can precipitate hepatic encephalopathy and renal dysfunction. NPLEX trap: Do not assume all hematemesis is a simple gastric ulcer in a patient with portal hypertension. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American College of Gastroenterology, American Gastroenterological Association, and/or American Association for the Study of Liver Diseases. Current guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

13

Thyroid Storm

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 34-year-old woman with untreated Graves disease presents with fever, agitation, vomiting, diarrhea, palpitations, and shortness of breath after developing pneumonia. Vital signs: • BP: 154/68 mmHg • HR: 166/min, irregular • RR: 30/min • Temperature: 40.2°C • SpO₂: 91% She is restless and confused. Examination shows a diffuse goiter, lid retraction, tremor, diaphoresis, and bilateral pulmonary crackles. ECG demonstrates atrial fibrillation with a rapid ventricular response.

Question 1 of 5NPLEX-ICC-061

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-062

What is the most appropriate next step?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-063

Which sequence correctly describes a major treatment principle?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-064

What additional therapies may be required?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-065

Which supplement is especially inappropriate in uncontrolled hyperthyroidism?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Thyroid storm precipitated by pneumonia. Key differentials: Sepsis, pheochromocytoma crisis, serotonin syndrome, anticholinergic toxicity, stimulant intoxication, malignant hyperthermia. Key investigations: TSH, free T4, free or total T3, CBC, electrolytes, glucose, renal and hepatic function, blood cultures, chest imaging, ECG, cardiac markers, and assessment for the precipitating illness. Treatment: Intensive supportive care, antithyroid medication, iodine after thionamide therapy, glucocorticoids, cautious beta-blockade, cooling, fluids, and treatment of infection. Naturopathic role: No botanical or nutritional intervention should delay emergency care. After recovery, review stimulant intake, iodine exposure, medication adherence, sleep, and nutrition. Pharmacology safety: Antithyroid medications can cause agranulocytosis and hepatic injury. Fever or sore throat during treatment requires urgent assessment. Referral: Immediate emergency transfer. Clinical pearl: Thyroid hormone levels alone do not determine thyroid storm; severe systemic decompensation is central to the diagnosis. NPLEX trap: Do not mistake extreme agitation and tachycardia for panic disorder. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Endocrine Society and/or American Thyroid Association. Current endocrine emergency guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

14

Acute Bacterial Meningitis With Meningococcemia

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 19-year-old university resident presents with abrupt fever, severe headache, vomiting, photophobia, and progressive confusion. A roommate reports that the patient developed a rash that does not fade when pressed. Vital signs: • BP: 88/52 mmHg • HR: 134/min • RR: 28/min • Temperature: 39.7°C Examination demonstrates neck stiffness, altered mental status, and a widespread nonblanching petechial and purpuric rash.

Question 1 of 5NPLEX-ICC-066

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-067

What is the most appropriate immediate management?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-068

When should brain imaging be considered before lumbar puncture?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-069

What should happen to close contacts if meningococcal disease is confirmed or strongly suspected?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-070

Which naturopathic intervention is appropriate during the acute presentation?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Invasive meningococcal disease causing meningitis and septicemia. Key differentials: Pneumococcal meningitis, viral meningitis, encephalitis, subarachnoid hemorrhage, toxic ingestion, severe migraine, Rocky Mountain spotted fever. Key investigations: Blood cultures, CBC, electrolytes, renal and hepatic function, glucose, lactate, coagulation studies, lumbar puncture when safe, and neuroimaging when indicated. Treatment: Immediate antibiotics, sepsis resuscitation, airway and circulatory support, appropriate infection-control precautions, and public-health notification. Naturopathic role: None during emergency treatment. Later care may support recovery from fatigue, nutritional deficits, and functional impairment under medical supervision. Pharmacology safety: Antibiotics must not be delayed for confirmatory testing in an unstable patient. Referral: Immediate emergency transfer. Clinical pearl: Meningococcal septicemia may progress rapidly even before classical meningitis signs are fully developed. NPLEX trap: Absence of a rash does not exclude meningococcal disease, and presence of a rash does not justify delaying treatment. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Infectious Diseases Society of America and/or Surviving Sepsis Campaign. Current evidence-based guidance relevant to this infection and its complications.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

15

Food-Induced Anaphylaxis

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 25-year-old man develops generalized hives, lip swelling, hoarseness, wheezing, abdominal cramping, and dizziness within minutes of eating a dessert containing peanuts. Vital signs: • BP: 76/44 mmHg • HR: 138/min • RR: 30/min • SpO₂: 88% He is anxious, has widespread urticaria, audible wheezing, and progressive tongue swelling.

Question 1 of 5NPLEX-ICC-071

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-072

What is the first-line treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-073

What additional action is most appropriate?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-074

Which statement about antihistamines is correct?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-075

What is the best long-term plan after recovery?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Peanut-induced anaphylactic shock. Key differentials: Severe asthma, vasovagal syncope, panic attack, hereditary angioedema, mast-cell disorder, acute urticaria. Key investigations: Anaphylaxis is primarily a clinical diagnosis. Serum tryptase may support the diagnosis in selected circumstances but must not delay treatment. Treatment: Immediate IM epinephrine, emergency activation, airway support, oxygen, intravenous fluids, repeat epinephrine when necessary, and monitored observation. Naturopathic role: No supplement replaces epinephrine. Dietary education may help prevent accidental exposure after emergency stabilization. Pharmacology safety: Beta-blockers may complicate treatment. Sedating antihistamines can impair assessment and are not first-line therapy. Referral: Immediate emergency transfer followed by allergy referral. Clinical pearl: Skin findings may be absent in some cases; airway or circulatory compromise after likely allergen exposure is sufficient to treat. NPLEX trap: Never wait for antihistamines to work before giving epinephrine. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
World Allergy Organization and Public Health Agency of Canada. Current anaphylaxis recognition and management guidance.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

16

Preeclampsia With Severe Features

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 32-year-old woman at 34 weeks’ gestation presents with a severe persistent headache, flashing lights in her vision, nausea, and right-upper-quadrant abdominal pain. Vital signs: • BP: 172/116 mmHg • Repeat BP: 168/112 mmHg • HR: 96/min • RR: 20/min Examination shows brisk reflexes and facial and hand swelling. Laboratory findings: • Platelets: 82 × 10⁹/L • AST and ALT: elevated • Serum creatinine: increased from baseline • Urine protein-to-creatinine ratio: elevated

Question 1 of 5NPLEX-ICC-076

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-077

What is the most appropriate immediate action?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-078

Which medication is commonly used to reduce the risk of eclamptic seizures?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-079

What is the definitive treatment for preeclampsia?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-080

Which naturopathic recommendation is inappropriate?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Preeclampsia with severe features; partial HELLP syndrome should be considered. Key differentials: Chronic hypertension with superimposed preeclampsia, gestational hypertension, migraine, hepatic disease, thrombotic thrombocytopenic purpura, acute fatty liver of pregnancy. Key investigations: Serial blood pressure, CBC and platelets, liver enzymes, creatinine, urine protein assessment, hemolysis studies, fetal monitoring, and obstetric ultrasound when indicated. Treatment: Hospitalization, urgent treatment of persistent severe hypertension, magnesium sulfate when indicated, maternal and fetal monitoring, and delivery planning. Naturopathic role: No complementary treatment should delay obstetric care. Long-term postpartum care may address cardiovascular risk, nutrition, activity, and blood-pressure monitoring. Pharmacology safety: Avoid ACE inhibitors, angiotensin-receptor blockers, and unverified botanicals during pregnancy. Referral: Immediate obstetric emergency transfer. Clinical pearl: Proteinuria is not required when new hypertension is accompanied by qualifying organ dysfunction. NPLEX trap: Do not attribute severe headache and visual symptoms in late pregnancy to migraine until preeclampsia is excluded. Preeclampsia usually develops after 20 weeks and may cause neurologic, renal, hepatic, hematologic, pulmonary, and fetal complications. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Society of Obstetricians and Gynaecologists of Canada and/or American College of Obstetricians and Gynecologists. Current guidance relevant to this obstetric or gynecologic emergency.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

17

Acute Angle-Closure Glaucoma

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 67-year-old woman presents with sudden severe pain in the right eye, blurred vision, rainbow halos around lights, headache, nausea, and vomiting. She recently began taking an over-the-counter medication containing an antihistamine and decongestant. Examination demonstrates: • Markedly reduced visual acuity in the right eye • Red eye • Hazy cornea • Mid-dilated poorly reactive pupil • Firm, tender globe • Intraocular pressure: 52 mmHg

Question 1 of 5NPLEX-ICC-081

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-082

What is the most appropriate action?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-083

Which treatment is commonly definitive for pupillary-block angle closure?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-084

Which medication class may precipitate angle closure in a susceptible patient?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-085

Which naturopathic intervention is appropriate?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Acute angle-closure glaucoma. Key differentials: Anterior uveitis, keratitis, conjunctivitis, scleritis, orbital cellulitis, migraine, endophthalmitis. Key investigations: Visual acuity, pupillary assessment, slit-lamp examination, intraocular pressure, gonioscopy when safe, and optic-nerve assessment. Treatment: Immediate pressure-lowering medications selected by ophthalmology, symptom control, and definitive laser or surgical therapy. Naturopathic role: Review potentially precipitating medications and supplements after stabilization. Complementary eye products must not replace ophthalmologic care. Pharmacology safety: Some anticholinergic, antihistamine, decongestant, antidepressant, and other medications can precipitate angle closure in susceptible patients. Referral: Immediate emergency ophthalmology referral. Clinical pearl: Acute glaucoma may present with nausea, vomiting, and headache, causing it to be mistaken for a gastrointestinal or neurologic disorder. NPLEX trap: Conjunctivitis does not normally cause a fixed pupil, severe visual loss, or a rock-hard eye. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Current evidence-based specialty guideline or consensus statement relevant to the diagnosis, stabilization, treatment, monitoring, and referral decisions in this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

18

Septic Arthritis of the Knee

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 63-year-old man with type 2 diabetes presents with rapidly progressive right-knee pain, swelling, warmth, and inability to bear weight. He had a corticosteroid injection into the knee six days ago. Vital signs: • BP: 106/66 mmHg • HR: 112/min • Temperature: 38.8°C The right knee is markedly swollen, hot, and extremely painful with both active and passive movement. Laboratory findings: • WBC: elevated • CRP: markedly elevated • ESR: elevated

Question 1 of 5NPLEX-ICC-086

What is the most concerning diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-087

What is the most important diagnostic procedure?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-088

Which statement is correct?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-089

What is the appropriate management?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-090

Which naturopathic intervention is contraindicated during the acute presentation?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Native-knee septic arthritis, possibly related to recent intra-articular injection. Key differentials: Gout, pseudogout, hemarthrosis, inflammatory arthritis, reactive arthritis, cellulitis, osteomyelitis. Key investigations: Arthrocentesis, synovial cell count and differential, Gram stain, culture, crystal analysis, blood cultures, CBC, CRP, ESR, renal function, glucose, and imaging when indicated. Treatment: Joint drainage, empiric antibiotics after appropriate cultures when feasible, culture-directed treatment, and management of sepsis or adjacent osteomyelitis. Naturopathic role: None during acute infection. Following eradication, supervised rehabilitation, nutrition, and glycemic management may support recovery. Pharmacology safety: Do not inject corticosteroids into a joint when infection is suspected. Referral: Same-day emergency orthopedic assessment. Clinical pearl: Absence of fever does not exclude septic arthritis. NPLEX trap: Do not label an acutely inflamed joint as gout without obtaining synovial fluid when infection is plausible. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Infectious Diseases Society of America and/or Surviving Sepsis Campaign. Current evidence-based guidance relevant to this infection and its complications.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

19

Serotonin Syndrome From a Drug–Herb Interaction

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 38-year-old woman taking sertraline for depression begins using St. John’s wort. Two days later, she receives tramadol for dental pain. She presents with agitation, confusion, sweating, diarrhea, tremor, and muscle twitching. Vital signs: • BP: 162/94 mmHg • HR: 128/min • RR: 24/min • Temperature: 39.0°C Examination demonstrates dilated pupils, inducible ankle clonus, ocular clonus, and marked lower-extremity hyperreflexia.

Question 1 of 5NPLEX-ICC-091

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-092

Which examination finding is particularly characteristic?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-093

Which combination most likely caused the condition?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-094

What is the most appropriate management?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-095

How does serotonin syndrome usually differ from neuroleptic malignant syndrome?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Moderate-to-severe serotonin syndrome caused by a prescription-drug and botanical interaction. Key differentials: Neuroleptic malignant syndrome, anticholinergic toxicity, sympathomimetic intoxication, malignant hyperthermia, sepsis, thyroid storm. Key investigations: Diagnosis is clinical. Tests may assess complications and alternative causes: CBC, electrolytes, renal and hepatic function, creatine kinase, glucose, ECG, urinalysis, toxicology studies, and cultures when indicated. Treatment: Stop serotonergic substances, supportive care, benzodiazepines when appropriate, cooling, intravenous fluids, and escalation for severe hyperthermia or organ dysfunction. Naturopathic role: Obtain a complete supplement history. St. John’s wort should not be casually combined with antidepressants, serotonergic analgesics, or numerous other medications. Pharmacology safety: Tramadol, certain antidepressants, monoamine-oxidase inhibitors, linezolid, dextromethorphan, lithium, stimulants, and several other substances may contribute to serotonin toxicity. Referral: Immediate emergency transfer for hyperthermia, clonus, marked agitation, unstable vital signs, or multiple serotonergic exposures. Clinical pearl: Clonus is one of the most useful bedside findings. NPLEX trap: Do not misdiagnose the tremor, sweating, diarrhea, and agitation as anxiety alone. Regulatory safety reports recognize serotonin syndrome after combinations of serotonergic medications, including certain opioids and antidepressants. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Current psychiatric emergency and suicide-risk guidance from recognized professional organizations, including the VA/DoD or American Psychiatric Association as applicable.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

20

Acute Appendicitis

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 24-year-old man presents with 18 hours of abdominal pain. The pain began near the umbilicus and subsequently migrated to the right lower quadrant. He reports anorexia, nausea, and one episode of vomiting. Vital signs: • BP: 122/76 mmHg • HR: 104/min • Temperature: 38.1°C Examination demonstrates localized right-lower-quadrant guarding, rebound tenderness, and pain with coughing. Laboratory findings: • WBC: 15.4 × 10⁹/L with neutrophilia • CRP: elevated • Urinalysis: no significant abnormality

Question 1 of 5NPLEX-ICC-096

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-097

What is the most appropriate next step?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-098

Which imaging approach is commonly appropriate in a nonpregnant adult when imaging is required?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-099

Which finding most strongly suggests perforation or generalized peritonitis?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-100

Which naturopathic intervention is inappropriate before surgical assessment?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Acute appendicitis. Key differentials: Gastroenteritis, mesenteric adenitis, Crohn disease, renal colic, urinary infection, testicular torsion, ectopic pregnancy, ovarian torsion, pelvic inflammatory disease. Key investigations: CBC, CRP, electrolytes, renal function, urinalysis, pregnancy testing when applicable, ultrasound, and CT according to age and clinical circumstances. Treatment: Surgical consultation, analgesia, fluids, antibiotics when indicated, and appendectomy for most patients. Carefully selected uncomplicated cases may be considered for nonoperative antibiotic management through shared decision-making and reliable follow-up. Naturopathic role: No botanical, dietary, hydrotherapy, or manual intervention should delay diagnostic imaging or surgical assessment. Pharmacology safety: Avoid assuming that temporary pain reduction after analgesia excludes appendicitis. Appropriate analgesia does not need to be withheld during evaluation. Referral: Prompt emergency assessment; immediate escalation for peritonitis, shock, or suspected perforation. Clinical pearl: The appendix can occupy atypical positions, so pain location and examination findings may vary. NPLEX trap: Do not give laxatives for presumed constipation when migration of pain, fever, anorexia, and peritoneal signs are present. The WSES guideline supports structured clinical assessment, selective imaging, timely surgery, and carefully selected nonoperative management for uncomplicated disease. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Current evidence-based specialty guideline or consensus statement relevant to the diagnosis, stabilization, treatment, monitoring, and referral decisions in this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

21

Acute Ischemic Stroke With Large-Vessel Occlusion

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 67-year-old man develops sudden inability to speak and weakness of the right side while eating breakfast. His wife confirms that he was normal 70 minutes earlier. Medical history includes hypertension, atrial fibrillation, and type 2 diabetes. He stopped taking apixaban three weeks ago because of cost. Vital signs: • BP: 184/102 mmHg • HR: 112/min, irregular • RR: 18/min • SpO₂: 96% • Capillary glucose: 7.8 mmol/L Examination demonstrates: • Expressive and receptive aphasia • Right facial droop • Right arm and leg weakness • Left gaze preference Noncontrast CT shows no intracranial hemorrhage. CT angiography demonstrates a left middle cerebral artery M1 occlusion.

Question 1 of 5NPLEX-ICC-101

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-102

What is the most appropriate immediate action in an outpatient clinic?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-103

Which treatment options should be assessed urgently?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-104

Why should aspirin not be given before hemorrhage is excluded?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-105

Which naturopathic recommendation is appropriate during the acute presentation?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Acute left middle cerebral artery ischemic stroke caused by large-vessel occlusion. Key differentials: Intracranial hemorrhage, hypoglycemia, seizure with postictal weakness, migraine with aura, brain tumour, functional neurologic disorder. Key investigations: Capillary glucose, noncontrast head CT, CT angiography, perfusion or MRI assessment when indicated, CBC, electrolytes, renal function, coagulation studies, ECG, and cardiac monitoring. Treatment: Emergency stroke-unit care, assessment for thrombolysis, mechanical thrombectomy evaluation, management of oxygenation and glucose, swallowing assessment, and prevention of complications. Naturopathic role: Following stabilization, support smoking cessation, Mediterranean-style nutrition, physical rehabilitation, sleep-apnea treatment, and adherence to vascular-prevention medications. Pharmacology safety: Supplements with antiplatelet activity may increase bleeding risk when combined with prescribed antithrombotic therapy. Referral: Immediate emergency stroke-centre transfer. Clinical pearl: Always establish the exact last-known-well time rather than the time the patient was discovered. NPLEX trap: Do not lower blood pressure aggressively in the clinic without direction from the stroke team because blood-pressure goals depend on reperfusion eligibility and other clinical factors. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American Heart Association and American Stroke Association. Current guideline for acute stroke or subarachnoid hemorrhage management relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

22

Acute Exacerbation of COPD With Hypercapnic Respiratory Failure

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 70-year-old man with severe COPD presents with four days of worsening dyspnea, increased cough, and thick green sputum. He has used his rescue inhaler every hour. Vital signs: • BP: 148/86 mmHg • HR: 122/min • RR: 32/min • SpO₂: 82% on room air • Temperature: 38.2°C He is using accessory muscles and is becoming drowsy. Arterial blood gas after controlled oxygen: • pH: 7.27 • PaCO₂: 68 mmHg • PaO₂: 58 mmHg • HCO₃⁻: 30 mmol/L

Question 1 of 5NPLEX-ICC-106

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-107

What is the most appropriate immediate management?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-108

Which intervention is particularly appropriate for persistent respiratory acidosis and increased work of breathing?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-109

When are antibiotics particularly appropriate in a COPD exacerbation?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-110

Which finding indicates impending respiratory arrest?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Severe COPD exacerbation with acute-on-chronic type 2 respiratory failure. Key differentials: Pneumonia, pulmonary embolism, pneumothorax, acute heart failure, arrhythmia, sedative toxicity. Key investigations: Pulse oximetry, arterial or venous blood gas, chest radiography, ECG, CBC, electrolytes, renal function, viral testing, sputum assessment, and cardiac markers when indicated. Treatment: Controlled oxygen, short-acting beta₂-agonist with or without an inhaled anticholinergic, systemic corticosteroid, antibiotics when indicated, and noninvasive ventilation. Naturopathic role: After recovery, emphasize smoking cessation, pulmonary rehabilitation, vaccination, nutrition, inhaler technique, and medication adherence. Pharmacology safety: Sedatives and opioids may worsen hypoventilation. Nonselective beta-blockers can aggravate bronchospasm in susceptible patients. Referral: Immediate hospital transfer for hypoxemia, respiratory acidosis, altered consciousness, severe distress, or failure of outpatient treatment. Clinical pearl: Drowsiness in a patient with COPD may indicate rising carbon dioxide rather than simple fatigue. NPLEX trap: Do not withhold necessary oxygen, but administer it in a controlled and monitored manner. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Global Initiative for Chronic Obstructive Lung Disease. Global Strategy for Prevention, Diagnosis and Management of COPD. Current edition.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

23

Acute Ascending Cholangitis

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 76-year-old woman presents with fever, shaking chills, jaundice, and severe right-upper-quadrant abdominal pain. Over the past hour she has become confused. Vital signs: • BP: 84/48 mmHg • HR: 128/min • RR: 26/min • Temperature: 39.5°C Laboratory findings: • WBC: 19.8 × 10⁹/L • Total bilirubin: 126 µmol/L • Alkaline phosphatase: markedly elevated • AST and ALT: elevated • Lactate: elevated Ultrasound shows gallstones and dilation of the common bile duct.

Question 1 of 5NPLEX-ICC-111

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-112

What is the underlying pathophysiology?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-113

What is the most appropriate management?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-114

Which investigation is most useful as the initial imaging study?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-115

Which naturopathic intervention is inappropriate?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Severe acute ascending cholangitis caused by common-bile-duct obstruction. Key differentials: Acute cholecystitis, gallstone pancreatitis, viral hepatitis, liver abscess, peptic-ulcer disease, right-lower-lobe pneumonia. Key investigations: CBC, liver enzymes, bilirubin, renal function, coagulation profile, lactate, blood cultures, ultrasound, and additional biliary imaging as needed. Treatment: ABC stabilization, intravenous fluids, antibiotics, urgent biliary decompression, and later definitive treatment of the obstructing cause. Naturopathic role: After recovery, dietary counselling may address metabolic risk factors and gradual return to appropriate fat intake. No botanical treatment replaces drainage. Pharmacology safety: Review anticoagulants before invasive treatment and adjust antibiotic dosing for renal and hepatic function. Referral: Immediate emergency transfer. Clinical pearl: Charcot triad is not present in every patient; laboratory inflammation and biliary obstruction may establish the diagnosis. NPLEX trap: Do not confuse cholangitis with uncomplicated biliary colic, which does not cause sepsis or jaundice from infection. Tokyo Guidelines provide standardized diagnostic and severity criteria for acute cholangitis. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Infectious Diseases Society of America and/or Surviving Sepsis Campaign. Current evidence-based guidance relevant to this infection and its complications.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

24

Life-Threatening Hyperkalemia

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 69-year-old man with stage 4 chronic kidney disease presents with weakness, nausea, and palpitations. Medications and supplements: • Losartan • Spironolactone • Trimethoprim-sulfamethoxazole started four days ago • Potassium-containing salt substitute • Potassium supplement Vital signs: • BP: 104/64 mmHg • HR: 48/min and irregular Laboratory findings: • Potassium: 7.2 mmol/L • Creatinine: markedly elevated from baseline • Bicarbonate: 16 mmol/L ECG demonstrates peaked T waves, PR prolongation, and widening of the QRS complex.

Question 1 of 5NPLEX-ICC-116

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-117

What is the first medication priority when ECG abnormalities are present?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-118

Which treatment temporarily shifts potassium into cells?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-119

Which intervention actually removes potassium from the body most rapidly in severe renal failure?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-120

Which combination likely contributed to the hyperkalemia?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Severe hyperkalemia with ECG toxicity caused by kidney failure and multiple potassium-raising substances. Key differentials: Pseudohyperkalemia, medication-related bradycardia, acute myocardial infarction, severe acidosis, adrenal insufficiency. Key investigations: Repeat potassium when pseudohyperkalemia is possible without delaying treatment, ECG, glucose, electrolytes, bicarbonate, renal function, magnesium, CBC, and assessment of urine output. Treatment: Cardiac membrane stabilization, intracellular potassium shifting, potassium removal, continuous ECG monitoring, medication review, and treatment of the underlying renal problem. Naturopathic role: Identify potassium-containing supplements, electrolyte powders, herbal products, and salt substitutes. Dietary potassium restriction should be individualized rather than imposed without nutritional assessment. Pharmacology safety: Monitor glucose after insulin. The effect of calcium is temporary, and rebound hyperkalemia can occur after shifting treatments. Referral: Immediate emergency transfer. Clinical pearl: ECG findings do not reliably correlate with the exact potassium concentration; serious arrhythmia can occur without a textbook progression. NPLEX trap: Calcium protects the heart but does not lower total-body potassium. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Current evidence-based specialty guideline or consensus statement relevant to the diagnosis, stabilization, treatment, monitoring, and referral decisions in this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

25

Adrenal Crisis

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 39-year-old woman with autoimmune Addison disease develops vomiting and diarrhea. She is unable to retain her hydrocortisone tablets and has not used her emergency injection. She presents with severe weakness, abdominal pain, dizziness, and confusion. Vital signs: • BP: 72/42 mmHg • HR: 128/min • Temperature: 38.3°C Laboratory findings: • Sodium: 122 mmol/L • Potassium: 6.0 mmol/L • Glucose: 2.8 mmol/L • Creatinine: elevated Examination reveals diffuse hyperpigmentation and marked dehydration.

Question 1 of 5NPLEX-ICC-121

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-122

What is the most appropriate immediate treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-123

Which investigation is used to confirm primary adrenal insufficiency after stabilization?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-124

Which long-term education is most important?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-125

Why should licorice not be used as a substitute for prescribed hormone replacement?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Adrenal crisis precipitated by gastroenteritis and failure to absorb glucocorticoid replacement. Key differentials: Septic shock, hypoglycemia, severe dehydration, DKA, medication toxicity, acute abdominal disease. Key investigations: Cortisol and ACTH if obtainable without delay, electrolytes, glucose, renal function, CBC, cultures, ECG, and assessment of the precipitating illness. Treatment: Immediate hydrocortisone, isotonic saline, dextrose when needed, treatment of hyperkalemia, and management of infection or another trigger. Naturopathic role: Reinforce hydration, medical identification, emergency planning, and medication adherence. Supplements must not replace hormone therapy. Pharmacology safety: Abrupt discontinuation of chronic glucocorticoids can produce secondary or tertiary adrenal insufficiency. Long-term supraphysiologic glucocorticoid exposure for three to four weeks or more can suppress the hypothalamic–pituitary–adrenal axis. Referral: Immediate emergency transfer. Clinical pearl: Treatment should begin on clinical suspicion; waiting for laboratory confirmation may be fatal. NPLEX trap: Normal potassium does not exclude secondary adrenal insufficiency because aldosterone may remain preserved. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Endocrine Society and/or American Thyroid Association. Current endocrine emergency guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

26

Infected Diabetic Foot Ulcer With Osteomyelitis

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 61-year-old man with poorly controlled diabetes and peripheral neuropathy presents with a plantar ulcer beneath the first metatarsal head. The ulcer has been present for six weeks. He reports new fever, foul drainage, and increasing redness. Vital signs: • BP: 98/60 mmHg • HR: 116/min • Temperature: 38.7°C Examination demonstrates: • A 3-cm deep ulcer • Purulent discharge • Surrounding erythema extending 6 cm • Bone palpable with a sterile probe • Weak pedal pulses • Loss of protective sensation

Question 1 of 5NPLEX-ICC-126

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-127

Which initial evaluation is most appropriate for suspected osteomyelitis?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-128

What is the preferred microbiologic specimen?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-129

What is the most appropriate management?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-130

Which naturopathic recommendation is appropriate after infection control?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Severe diabetic foot infection with probable osteomyelitis and peripheral arterial disease. Key differentials: Charcot arthropathy, gout, sterile neuropathic ulcer, venous ulcer, foreign-body reaction, malignancy. Key investigations: CBC, CRP or ESR, renal function, glucose, blood cultures when systemically ill, plain radiographs, MRI when needed, vascular testing, and deep-tissue or bone culture. Treatment: Antibiotics selected according to severity and microbiology, surgical drainage or debridement, pressure off-loading, glycemic management, and restoration of perfusion when possible. Naturopathic role: Support adequate protein and energy intake, smoking cessation, safe glucose management, footwear, and daily inspection. Pharmacology safety: Renal impairment may require antimicrobial dose adjustment. Avoid topical products that damage viable tissue or obscure infection. Referral: Immediate hospital assessment for systemic toxicity, rapidly progressive infection, gangrene, ischemia, deep abscess, or suspected necrotizing infection. Clinical pearl: Neuropathy can allow severe infection to progress with surprisingly little pain. NPLEX trap: Do not treat an infected diabetic ulcer with supplements alone or rely on a superficial wound swab. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American Diabetes Association. Standards of Care in Diabetes. Current edition.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

27

Pelvic Inflammatory Disease With Tubo-Ovarian Abscess

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 27-year-old woman presents with five days of worsening bilateral lower-abdominal pain, fever, nausea, and foul-smelling vaginal discharge. She has a new sexual partner and inconsistent condom use. Vital signs: • BP: 100/64 mmHg • HR: 114/min • Temperature: 39.0°C Pelvic examination demonstrates: • Cervical motion tenderness • Uterine tenderness • Marked left adnexal tenderness Pregnancy testing is negative. Transvaginal ultrasound shows a complex 6-cm left adnexal mass consistent with a tubo-ovarian abscess.

Question 1 of 5NPLEX-ICC-131

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-132

What is the most appropriate management?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-133

Which tests are important?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-134

What advice should be given regarding sexual partners?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-135

Which naturopathic intervention is contraindicated during the acute illness?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: PID complicated by a left tubo-ovarian abscess. Key differentials: Ectopic pregnancy, ovarian torsion, appendicitis, endometriosis, ruptured ovarian cyst, urinary infection. Key investigations: Pregnancy test, gonorrhea and chlamydia nucleic-acid testing, HIV and syphilis tests, CBC, inflammatory markers, urinalysis, cultures when appropriate, and transvaginal ultrasound. Treatment: Broad-spectrum antibiotics, observation, pain and fluid management, partner management, and drainage or surgery if clinically necessary. Naturopathic role: Following eradication of infection, provide counselling on barrier protection, STI screening, reproductive planning, nutrition, and microbiome-supportive food choices. Pharmacology safety: Do not omit anaerobic coverage when treating a tubo-ovarian abscess. Review interactions between antibiotics and supplements. Referral: Hospitalization for abscess, pregnancy, severe illness, inability to tolerate oral treatment, surgical emergency, or lack of clinical improvement. Clinical pearl: PID is treated on a low diagnostic threshold because delayed therapy increases infertility, ectopic-pregnancy, and chronic-pelvic-pain risks. NPLEX trap: A negative cervical test does not exclude infection of the upper genital tract. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Current evidence-based specialty guideline or consensus statement relevant to the diagnosis, stabilization, treatment, monitoring, and referral decisions in this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

28

Exertional Heat Stroke

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 23-year-old man collapses near the end of a summer marathon. The outdoor temperature is 34°C with high humidity. He is confused, combative, and unable to follow commands. Findings: • Rectal temperature: 41.3°C • HR: 156/min • BP: 88/52 mmHg • RR: 30/min • Skin: hot and profusely sweaty

Question 1 of 5NPLEX-ICC-136

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-137

What is the immediate treatment priority?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-138

Which temperature measurement is most useful for monitoring exertional heat stroke?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-139

Why are acetaminophen and NSAIDs inappropriate as primary treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-140

Which complications should be monitored?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Exertional heat stroke with shock and encephalopathy. Key differentials: Hyponatremic encephalopathy, hypoglycemia, stimulant toxicity, serotonin syndrome, malignant hyperthermia, meningitis, seizure. Key investigations: Rectal temperature, glucose, electrolytes, renal and hepatic function, creatine kinase, coagulation studies, urinalysis, ECG, and serial organ-function testing. Treatment: Immediate cooling, airway and circulatory support, intravenous fluids based on clinical status, correction of metabolic abnormalities, and monitoring for organ failure. Naturopathic role: Prevention includes acclimatization, hydration planning, rest periods, appropriate clothing, and avoiding high-risk supplements or stimulants before exertion. Pharmacology safety: Diuretics, anticholinergics, stimulants, some psychotropic drugs, and alcohol may impair hydration, sweating, judgment, or heat tolerance. Referral: Immediate emergency transfer. Clinical pearl: Mental-status change is the feature that distinguishes heat stroke from uncomplicated heat exhaustion. NPLEX trap: The patient does not need to have dry skin; exertional heat-stroke patients commonly continue sweating. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American Heart Association and American Stroke Association. Current guideline for acute stroke or subarachnoid hemorrhage management relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

29

Giant Cell Arteritis With Threatened Vision

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 73-year-old woman presents with a new severe right temporal headache, scalp tenderness, fatigue, and pain in the jaw while chewing. This morning she experienced five minutes of complete vision loss in the right eye. Laboratory findings: • ESR: 92 mm/hour • CRP: markedly elevated • Platelets: elevated • Hemoglobin: mildly reduced Examination reveals a tender, thickened right temporal artery with reduced pulsation.

Question 1 of 5NPLEX-ICC-141

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-142

What is the most appropriate immediate action?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-143

Which diagnostic test is traditionally used to confirm the diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-144

Which associated condition should be assessed?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-145

Which naturopathic approach is appropriate?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Giant cell arteritis with transient ischemic visual symptoms. Key differentials: Nonarteritic ischemic optic neuropathy, retinal artery occlusion, migraine aura, glaucoma, intracranial mass, temporomandibular disorder. Key investigations: ESR, CRP, CBC and platelets, liver profile, temporal artery biopsy or ultrasound, and vascular imaging when large-vessel disease is suspected. Treatment: Immediate glucocorticoids, urgent ophthalmologic and rheumatologic assessment, and steroid-sparing treatment for selected patients. Naturopathic role: Support protein and calcium adequacy, vitamin D assessment, resistance exercise when safe, and management of glucocorticoid-related metabolic risks. Pharmacology safety: Long-term glucocorticoids increase risks of infection, osteoporosis, hyperglycemia, hypertension, cataracts, and adrenal suppression. Referral: Same-day emergency assessment for any visual symptoms; urgent specialist referral for all suspected cases. Clinical pearl: Jaw claudication is more specific than a nonspecific headache. NPLEX trap: A normal or only mildly elevated inflammatory marker does not completely exclude the diagnosis when clinical suspicion is high. The ACR/VF guideline addresses diagnostic testing, glucocorticoid therapy, steroid-sparing treatment, and monitoring. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Current evidence-based specialty guideline or consensus statement relevant to the diagnosis, stabilization, treatment, monitoring, and referral decisions in this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

30

Gallstone Acute Pancreatitis

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 48-year-old woman presents with severe constant epigastric pain radiating to her back. The pain began after a large meal and is accompanied by repeated vomiting. Vital signs: • BP: 104/68 mmHg • HR: 112/min • RR: 22/min • Temperature: 37.9°C Examination demonstrates marked epigastric tenderness without rigidity. Laboratory findings: • Lipase: more than five times the upper limit of normal • ALT: markedly elevated • Bilirubin: mildly elevated • WBC: elevated Ultrasound shows gallstones without definite common-bile-duct dilation.

Question 1 of 5NPLEX-ICC-146

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-147

How is acute pancreatitis generally diagnosed?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-148

What is appropriate early management?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-149

When is urgent ERCP particularly indicated?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-150

Which intervention is inappropriate during the acute illness?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Acute gallstone pancreatitis. Key differentials: Perforated peptic ulcer, acute cholecystitis, cholangitis, bowel ischemia, myocardial infarction, aortic dissection, intestinal obstruction. Key investigations: Lipase, CBC, electrolytes, renal and hepatic function, glucose, calcium, triglycerides, ultrasound, and selective CT or MRI when diagnosis is uncertain or the patient fails to improve. Treatment: Fluid and hemodynamic monitoring, analgesia, antiemetics, early enteral nutrition, treatment of complications, ERCP when cholangitis is present, and definitive gallbladder management. Naturopathic role: After recovery, address alcohol avoidance, triglycerides, healthy weight, and an individualized dietary pattern. Nutritional intervention does not replace treatment of gallstones. Pharmacology safety: Certain medications can cause pancreatitis. Routine antibiotics are not indicated for sterile pancreatic inflammation or sterile necrosis. Referral: Hospital assessment for acute pancreatitis; intensive care for shock, hypoxemia, renal failure, altered consciousness, or persistent organ dysfunction. Clinical pearl: The magnitude of lipase elevation does not determine the severity of pancreatitis. NPLEX trap: Do not order immediate contrast CT in every patient when the diagnosis is already clear and the patient is improving. The 2024 ACG guidance emphasizes selective imaging, monitored fluids, early feeding, and avoidance of routine prophylactic antibiotics. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American College of Gastroenterology, American Gastroenterological Association, and/or American Association for the Study of Liver Diseases. Current guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

31

Aneurysmal Subarachnoid Hemorrhage

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 51-year-old woman develops a sudden, severe headache while lifting a heavy box. She describes it as “the worst headache of my life,” reaching maximum intensity within seconds. She also reports vomiting, neck pain, photophobia, and brief loss of consciousness. Vital signs: • BP: 188/104 mmHg • HR: 92/min • RR: 20/min • SpO₂: 97% • Temperature: 37.1°C Examination demonstrates neck stiffness and photophobia. She is drowsy but follows commands. No focal weakness is initially identified.

Question 1 of 5NPLEX-ICC-151

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-152

What is the most appropriate immediate action?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-153

What is the preferred initial investigation?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-154

Which medication is commonly used after aneurysmal subarachnoid hemorrhage to reduce the risk of poor outcomes from delayed cerebral ischemia?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-155

Which naturopathic intervention is contraindicated?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Suspected aneurysmal subarachnoid hemorrhage. Key differentials: Cervical-artery dissection, intracerebral hemorrhage, reversible cerebral vasoconstriction syndrome, cerebral venous thrombosis, meningitis, pituitary apoplexy, migraine. Key investigations: Noncontrast head CT, CT angiography, CBC, electrolytes, renal function, coagulation profile, ECG, and lumbar puncture or additional imaging when clinically indicated. Treatment: Stabilization, aneurysm identification, early endovascular or surgical securing of the aneurysm, nimodipine, blood-pressure management, and monitoring for rebleeding, hydrocephalus, seizures, vasospasm, and delayed ischemia. Naturopathic role: No acute naturopathic treatment is appropriate. Following recovery, risk-factor management may include smoking cessation, blood-pressure control, sleep, nutrition, and rehabilitation support. Pharmacology safety: Review anticoagulants, antiplatelets, sympathomimetics, stimulants, and supplements that increase bleeding risk. Referral: Immediate emergency transfer. Clinical pearl: Patients may have a brief “sentinel” headache before a major aneurysmal rupture. NPLEX trap: A normal neurologic examination does not exclude subarachnoid hemorrhage. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American Heart Association and American Stroke Association. Current guideline for acute stroke or subarachnoid hemorrhage management relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

32

Septic Shock From Community-Acquired Pneumonia

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 72-year-old man presents with fever, productive cough, increasing confusion, and shortness of breath. Medical history includes COPD, type 2 diabetes, and chronic kidney disease. Vital signs: • BP: 78/44 mmHg • HR: 132/min • RR: 32/min • SpO₂: 84% on room air • Temperature: 39.4°C Examination reveals confusion, cool extremities, delayed capillary refill, and right-lower-lobe crackles. Laboratory findings: • WBC: 22 × 10⁹/L • Lactate: 5.2 mmol/L • Creatinine: increased from baseline • Platelets: reduced Chest radiograph demonstrates right-lower-lobe consolidation.

Question 1 of 5NPLEX-ICC-156

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-157

What is the most appropriate immediate management?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-158

Which intravenous fluid is generally preferred for initial resuscitation?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-159

Which vasopressor is generally used first if hypotension persists despite appropriate fluid resuscitation?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-160

Which naturopathic intervention is inappropriate?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Septic shock caused by severe community-acquired pneumonia. Key differentials: Cardiogenic shock, pulmonary embolism, COPD exacerbation, aspiration pneumonia, influenza, COVID-19, pneumothorax. Key investigations: Blood cultures, lactate, CBC, electrolytes, renal and liver function, coagulation studies, arterial or venous blood gas, chest imaging, respiratory testing, urinalysis, ECG, and cardiac markers when indicated. Treatment: Immediate antibiotics, oxygen and ventilatory support, crystalloid resuscitation, vasopressors, glucose monitoring, source control, and organ-supportive care. Naturopathic role: None during shock. Following recovery, nutrition, pulmonary rehabilitation, vaccination, sleep, and chronic-disease management may support rehabilitation. Pharmacology safety: Antibiotic doses require adjustment for renal function. Sedating agents may worsen respiratory compromise or confusion. Referral: Immediate emergency transfer. Clinical pearl: Fever may be absent in older or immunocompromised patients with severe sepsis. NPLEX trap: Do not wait for culture results before beginning antimicrobial therapy in septic shock. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Infectious Diseases Society of America and/or Surviving Sepsis Campaign. Current evidence-based guidance relevant to this infection and its complications.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

33

Myasthenic Crisis

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 44-year-old woman with generalized myasthenia gravis develops progressive weakness after an upper-respiratory infection. She reports: • Difficulty swallowing • Nasal speech • Weak cough • Shortness of breath • Inability to hold her head upright Medications include pyridostigmine and prednisone. She recently started azithromycin. Vital signs: • BP: 134/78 mmHg • HR: 112/min • RR: 30/min • SpO₂: 94% She has bilateral ptosis, facial weakness, pooling of oral secretions, and shallow respirations. Her single-breath count is markedly reduced.

Question 1 of 5NPLEX-ICC-161

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-162

What is the most appropriate immediate action?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-163

Which bedside measurements help assess respiratory muscle weakness?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-164

Which treatments are commonly used for myasthenic crisis?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-165

Which substance may worsen neuromuscular weakness?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Myasthenic crisis, likely precipitated by infection and potentially aggravated by medication. Key differentials: Cholinergic toxicity, Guillain–Barré syndrome, botulism, brainstem stroke, opioid toxicity, severe pneumonia, electrolyte disorder. Key investigations: Serial respiratory mechanics, blood gas when indicated, chest imaging, CBC, electrolytes, magnesium, renal function, infection assessment, ECG, and medication review. Treatment: Airway and ventilatory support, IVIG or plasma exchange, treatment of infection, secretion management, and adjustment of myasthenia medications by specialists. Naturopathic role: No acute botanical or nutritional therapy should delay ventilation or immunotherapy. Later care may address sleep, safe exercise, energy conservation, and nutrition. Pharmacology safety: Avoid unnecessary sedatives and neuromuscular-blocking medications. Review magnesium, aminoglycosides, fluoroquinolones, macrolides, beta-blockers, and other potentially aggravating substances. Referral: Immediate emergency transfer. Clinical pearl: Respiratory failure in myasthenia may develop without severe hypoxemia at the beginning. NPLEX trap: A normal pulse-oximetry reading does not prove that ventilation is adequate. The Myasthenia Gravis Foundation emphasizes careful respiratory and bulbar assessment because crisis may present differently from other causes of respiratory failure. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American Academy of Neurology, American College of Radiology, and/or relevant emergency neurology guidance. Current recommendations relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

34

Nonvariceal Upper Gastrointestinal Hemorrhage

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 68-year-old woman presents with coffee-ground vomiting, black tarry stools, weakness, and dizziness. Medical history includes osteoarthritis and coronary artery disease. Medications and supplements: • Aspirin • Naproxen • Prednisone • Ginkgo biloba • Garlic capsules Vital signs: • BP: 88/56 mmHg • HR: 124/min • RR: 22/min Examination demonstrates pallor and epigastric tenderness. Laboratory findings: • Hemoglobin: 74 g/L • BUN: disproportionately elevated • Creatinine: mildly elevated

Question 1 of 5NPLEX-ICC-166

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-167

What is the most appropriate immediate management?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-168

Which procedure is both diagnostic and potentially therapeutic?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-169

Which substances are most concerning for increasing bleeding risk?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-170

Which naturopathic recommendation is appropriate?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Hemodynamically significant nonvariceal upper gastrointestinal hemorrhage, likely peptic-ulcer related. Key differentials: Variceal bleeding, erosive gastritis, Mallory–Weiss tear, malignancy, angiodysplasia, aortoenteric fistula. Key investigations: CBC, serial hemoglobin, blood type and crossmatch, electrolytes, renal and liver function, coagulation studies, ECG, cardiac markers when indicated, and upper endoscopy. Treatment: Resuscitation, appropriate transfusion, proton-pump inhibitor therapy, endoscopic hemostasis, testing and treatment for Helicobacter pylori, and management of antithrombotic medications. Naturopathic role: After bleeding has resolved, eliminate unnecessary NSAID exposure, address smoking and alcohol, support iron repletion, and review all bleeding-promoting supplements. Pharmacology safety: Aspirin prescribed for secondary cardiovascular prevention should not be discontinued indefinitely without medical guidance. Referral: Immediate emergency transfer. Clinical pearl: Melena can continue for several days after bleeding stops and does not alone indicate continued active hemorrhage. NPLEX trap: Do not treat severe anemia with iron alone without controlling and investigating the bleeding source. The ACG upper-GI bleeding guideline addresses resuscitation, risk assessment, endoscopy, hemostasis, and post-endoscopic acid suppression. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American College of Gastroenterology, American Gastroenterological Association, and/or American Association for the Study of Liver Diseases. Current guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

35

Ovarian Torsion

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 24-year-old woman presents with sudden severe left lower-abdominal pain that began during exercise. The pain is associated with repeated vomiting. She has a known 7-cm left ovarian cyst. Vital signs: • BP: 116/72 mmHg • HR: 108/min • Temperature: 37.3°C Examination demonstrates marked left-lower-quadrant and adnexal tenderness without diffuse rigidity. Pregnancy testing is negative. Ultrasound shows an enlarged left ovary with peripheral follicles and reduced venous Doppler flow.

Question 1 of 5NPLEX-ICC-171

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-172

What is the most appropriate management?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-173

Which statement about Doppler ultrasound is correct?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-174

Why is immediate pregnancy testing important?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-175

Which naturopathic intervention is contraindicated?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Left ovarian torsion associated with a large ovarian cyst. Key differentials: Ruptured ovarian cyst, ectopic pregnancy, tubo-ovarian abscess, appendicitis, renal colic, endometriosis, degenerating fibroid. Key investigations: Pregnancy testing, pelvic ultrasound with Doppler, CBC, urinalysis, blood type when bleeding is possible, and additional imaging only when it does not delay surgery. Treatment: Urgent laparoscopy, detorsion, ovarian preservation when feasible, and treatment of the associated cyst or mass based on clinical circumstances. Naturopathic role: None during suspected torsion. Postoperative support may address nutrition, pain-management safety, bowel function, and recovery. Pharmacology safety: Analgesic response does not rule out torsion. Sedating medications should not delay surgical assessment. Referral: Immediate emergency gynecologic referral. Clinical pearl: Pain may be intermittent if the ovary twists and partially untwists. NPLEX trap: Do not exclude torsion solely because Doppler arterial flow remains visible. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Society of Obstetricians and Gynaecologists of Canada and/or American College of Obstetricians and Gynecologists. Current guidance relevant to this obstetric or gynecologic emergency.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

36

Pediatric Intussusception

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

An 18-month-old boy is brought to the emergency clinic because of repeated episodes of severe crying. During each episode, he draws his knees toward his chest and becomes pale. Between episodes, he appears tired but relatively comfortable. He has vomited three times. His parent reports one stool containing blood and mucus. Vital signs: • HR: 142/min • RR: 26/min • Temperature: 37.7°C Examination reveals a tender, sausage-shaped mass in the right upper abdomen. The right lower quadrant feels relatively empty.

Question 1 of 5NPLEX-ICC-176

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-177

What is the preferred initial imaging test?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-178

What is the preferred initial treatment in a stable child without perforation or peritonitis?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-179

When is surgery more likely to be required?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-180

Which intervention is inappropriate before emergency assessment?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Ileocolic intussusception. Key differentials: Gastroenteritis, volvulus, incarcerated hernia, appendicitis, Meckel diverticulum, constipation, nonaccidental injury. Key investigations: Abdominal ultrasound, glucose, electrolytes and CBC in an ill or dehydrated child, and abdominal radiography when obstruction or perforation is suspected. Treatment: Stabilization, intravenous access and fluids when needed, analgesia, image-guided enema reduction, observation after reduction, and surgical treatment when indicated. Naturopathic role: None before reduction. After recovery, routine age-appropriate nutrition may resume according to the treating team. Pharmacology safety: Avoid sedating or antidiarrheal medications that mask deterioration. Referral: Immediate pediatric emergency referral. Clinical pearl: Profound lethargy may be a prominent presenting feature and can be mistaken for a primary neurologic problem. NPLEX trap: Do not wait for currant-jelly stool; bowel ischemia may already be developing by the time it appears. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Canadian Paediatric Society and/or American Academy of Pediatrics. Current pediatric guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

37

Acute Type A Aortic Dissection

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 63-year-old man with poorly controlled hypertension develops abrupt severe chest pain while shovelling snow. He describes a tearing sensation radiating between his shoulder blades. He reports weakness of the left leg and feels faint. Vital signs: • Right-arm BP: 192/106 mmHg • Left-arm BP: 154/88 mmHg • HR: 118/min • RR: 24/min Examination demonstrates a new early diastolic murmur, reduced left femoral pulse, and cool left foot.

Question 1 of 5NPLEX-ICC-181

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-182

What is the most appropriate action?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-183

Which imaging study is generally preferred in a hemodynamically stable patient?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-184

Which medication principle is appropriate during initial medical stabilization?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-185

Which naturopathic intervention is contraindicated?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Acute Stanford type A aortic dissection with aortic regurgitation and limb malperfusion. Key differentials: Acute coronary syndrome, pulmonary embolism, pericarditis, pneumothorax, esophageal rupture, musculoskeletal pain. Key investigations: CT angiography, transesophageal echocardiography when appropriate, ECG, chest radiograph, CBC, renal function, coagulation studies, cardiac markers, blood type and crossmatch. Treatment: Anti-impulse therapy, pain control, urgent cardiovascular surgery, and management of malperfusion, tamponade, shock, or aortic rupture. Naturopathic role: Following recovery, strict blood-pressure control, smoking cessation, safe physical activity, and avoidance of stimulant supplements are important. Pharmacology safety: Anticoagulation or thrombolysis given for a mistaken diagnosis of acute coronary syndrome may be catastrophic. Referral: Immediate emergency transfer. Clinical pearl: A normal chest radiograph does not exclude aortic dissection. NPLEX trap: Do not assume severe interscapular pain after exertion is a muscle strain. The AHA describes aneurysms and dissections as life-threatening emergencies requiring immediate medical attention. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American Heart Association and American College of Cardiology. Current evidence-based cardiovascular emergency and disease-specific clinical practice guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

38

Infected Obstructing Ureteral Stone

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 46-year-old woman presents with severe left-flank pain, fever, vomiting, and reduced urine output. Vital signs: • BP: 86/50 mmHg • HR: 128/min • RR: 26/min • Temperature: 39.3°C Examination demonstrates left costovertebral-angle tenderness. Laboratory findings: • WBC: 20 × 10⁹/L • Creatinine: elevated • Lactate: 4.4 mmol/L • Urinalysis: pyuria, nitrites, hematuria CT demonstrates an 8-mm proximal left ureteral stone with hydronephrosis and perinephric stranding.

Question 1 of 5NPLEX-ICC-186

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-187

What is the most important management step?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-188

Which procedures can provide emergency decompression?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-189

When should definitive stone removal usually occur?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-190

Which naturopathic recommendation is inappropriate?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Septic obstructive pyelonephritis caused by a proximal ureteral stone. Key differentials: Uncomplicated pyelonephritis, renal infarction, appendicitis, diverticulitis, musculoskeletal pain, ruptured abdominal aneurysm. Key investigations: CBC, electrolytes, renal function, lactate, blood and urine cultures, urinalysis, pregnancy testing when relevant, and urgent imaging. Treatment: Sepsis resuscitation, intravenous antibiotics, urgent urinary decompression, renal monitoring, and later definitive stone treatment. Naturopathic role: Following recovery and stone analysis, individualized prevention may include hydration, sodium reduction, normal dietary calcium, and treatment tailored to stone composition and metabolic evaluation. Pharmacology safety: NSAIDs can worsen kidney injury in hypotension or advanced renal impairment. Supplements may contain potassium, calcium, oxalate, or poorly declared diuretics. Referral: Immediate emergency urologic transfer. Clinical pearl: An infected obstructed kidney may not respond to antibiotics until drainage is established. NPLEX trap: Do not manage fever and hydronephrosis as uncomplicated renal colic. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Current evidence-based specialty guideline or consensus statement relevant to the diagnosis, stabilization, treatment, monitoring, and referral decisions in this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

39

Acute Acetaminophen Overdose

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 22-year-old woman reports taking approximately thirty 500-mg acetaminophen tablets in a single ingestion after an argument. The ingestion occurred five hours ago. She currently has nausea and mild right-upper-quadrant discomfort but appears otherwise well. Vital signs are stable. Laboratory findings: • Serum acetaminophen concentration: above the treatment line on the Rumack–Matthew nomogram • AST and ALT: initially normal • INR: normal • Creatinine: normal

Question 1 of 5NPLEX-ICC-191

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-192

What is the antidote?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-193

When is the Rumack–Matthew nomogram appropriately used?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-194

Why should treatment not be delayed because the initial AST and ALT are normal?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-195

What additional assessment is essential?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Acute potentially hepatotoxic acetaminophen overdose following intentional self-harm. Key differentials: Mixed overdose, salicylate toxicity, toxic alcohol ingestion, viral hepatitis, ischemic liver injury, mushroom poisoning. Key investigations: Timed acetaminophen concentration, AST, ALT, INR, bilirubin, electrolytes, glucose, renal function, blood gas and lactate when ill, pregnancy testing when relevant, ECG, and testing for coingestants. Treatment: Poison-centre consultation, N-acetylcysteine, supportive care, repeated liver and coagulation testing, treatment of hypoglycemia or acidosis, and transplant-centre consultation for acute liver failure. Naturopathic role: Over-the-counter NAC supplements must not replace hospital antidote protocols. Activated charcoal is an emergency toxicology intervention, not a routine home detoxification measure. Pharmacology safety: Acetaminophen is contained in hundreds of prescription and over-the-counter combination products, increasing the risk of unintended duplicate dosing. Referral: Immediate emergency and poison-centre assessment. Clinical pearl: Severe acetaminophen toxicity may initially cause few symptoms. NPLEX trap: Do not wait for jaundice or abnormal liver enzymes before treating a qualifying overdose. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Goldfrank’s Toxicologic Emergencies, current edition, together with current poison-centre and medical-toxicology guidance relevant to this exposure.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

40

Carbon Monoxide Poisoning

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 36-year-old pregnant woman at 24 weeks’ gestation presents with headache, dizziness, nausea, weakness, and confusion. Her husband and child have similar symptoms. The family used a gasoline-powered generator inside an attached garage during a power outage. Vital signs: • BP: 118/72 mmHg • HR: 116/min • RR: 22/min • Standard pulse oximetry: 99% She is confused and unsteady. A venous blood sample measured by co-oximetry demonstrates an elevated carboxyhemoglobin level.

Question 1 of 5NPLEX-ICC-196

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-197

Why can standard pulse oximetry appear normal?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-198

What is the immediate treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-199

Which test confirms exposure?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-200

Why is pregnancy especially concerning?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Carbon monoxide poisoning from indoor generator use during pregnancy. Key differentials: Viral illness, food poisoning, cyanide exposure during a fire, methemoglobinemia, migraine, toxic alcohol exposure. Key investigations: Carboxyhemoglobin by co-oximetry, ECG, cardiac markers, glucose, electrolytes, blood gas, lactate, neurologic assessment, pregnancy and fetal evaluation, and tests for additional toxins when relevant. Treatment: Immediate high-concentration oxygen, airway and cardiovascular support, seizure treatment when required, toxicology consultation, and evaluation for hyperbaric oxygen in severe cases or pregnancy. Naturopathic role: No botanical, antioxidant, or detoxification protocol should replace oxygen. Prevention includes properly installed carbon-monoxide alarms and never operating generators, charcoal grills, or fuel-burning equipment in enclosed or attached spaces. Pharmacology safety: Pulse oximetry may be misleading. Treatment should not be withheld while waiting for laboratory confirmation. Referral: Immediate emergency transfer. Other people and animals exposed to the same environment must also be evacuated and evaluated. Public-safety authorities may need to investigate and secure the source. Clinical pearl: A group of people with simultaneous “flu-like” symptoms should trigger an environmental-exposure history. NPLEX trap: A pulse-oximetry reading of 99% does not exclude severe carbon monoxide poisoning. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Goldfrank’s Toxicologic Emergencies, current edition, together with current poison-centre and medical-toxicology guidance relevant to this exposure.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

41

Generalized Convulsive Status Epilepticus

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 34-year-old man with epilepsy is brought to the clinic after developing continuous generalized tonic–clonic activity. The seizure began approximately seven minutes ago and has not stopped. His partner reports that he missed several doses of levetiracetam. He also developed fever and headache earlier in the day. Vital signs: • BP: 166/94 mmHg • HR: 138/min • RR: irregular • SpO₂: 86% • Temperature: 39.1°C • Capillary glucose: 5.9 mmol/L The patient remains unresponsive with generalized convulsions.

Question 1 of 5NPLEX-ICC-201

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-202

What is the immediate management priority?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-203

Which medication is an appropriate first-line antiseizure treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-204

The seizure continues after adequate benzodiazepine treatment. What is the next step?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-205

Which naturopathic intervention is appropriate during the seizure?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Generalized convulsive status epilepticus. Key differentials: Hypoglycemia, toxic ingestion, meningitis or encephalitis, intracranial hemorrhage, electrolyte disturbance, psychogenic nonepileptic seizure, eclampsia. Key investigations: Glucose, CBC, electrolytes, calcium, magnesium, renal and liver function, toxicology testing, antiseizure-drug levels when relevant, pregnancy testing, brain imaging, lumbar puncture when infection is suspected and safe, and EEG. Treatment: ABC stabilization, benzodiazepine therapy, second-line antiseizure medication, correction of metabolic causes, treatment of infection, and intensive-care management for refractory seizures. Naturopathic role: After stabilization, assess sleep, alcohol, stimulant use, medication adherence, and supplement interactions. Complementary therapies must not replace prescribed antiseizure treatment. Pharmacology safety: Abrupt discontinuation of antiseizure medication can precipitate seizures. Certain botanicals, stimulants, sedatives, and interacting medications may lower the seizure threshold or alter drug levels. Referral: Immediate emergency transfer. Clinical pearl: A patient who stops convulsing but does not regain consciousness may still have nonconvulsive status epilepticus. NPLEX trap: Do not wait 30 minutes before beginning treatment. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American Academy of Neurology, American College of Radiology, and/or relevant emergency neurology guidance. Current recommendations relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

42

Infective Endocarditis With Systemic Embolization

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 39-year-old man presents with three weeks of fever, night sweats, fatigue, weight loss, and progressive shortness of breath. He injects opioids and recently developed a painful, discoloured left great toe. Vital signs: • BP: 106/64 mmHg • HR: 116/min • Temperature: 38.9°C Examination demonstrates: • A new holosystolic murmur • Splinter hemorrhages • Tender nodules on two fingertips • Petechiae • A cool, cyanotic left great toe Laboratory results show anemia, leukocytosis, elevated inflammatory markers, and microscopic hematuria.

Question 1 of 5NPLEX-ICC-206

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-207

Which investigation should be obtained before antibiotics when this does not delay urgent treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-208

Which cardiac investigation is most appropriate initially?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-209

What is the most appropriate treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-210

Which naturopathic recommendation is appropriate?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Infective endocarditis complicated by peripheral arterial embolization. Key differentials: Nonbacterial thrombotic endocarditis, vasculitis, atrial myxoma, septicemia from another source, connective-tissue disease. Key investigations: Multiple blood cultures, transthoracic and transesophageal echocardiography, CBC, renal and liver function, urinalysis, inflammatory markers, ECG, and targeted imaging for embolic complications. Treatment: Intravenous antibiotics, source control, evaluation for cardiac surgery, treatment of heart failure, and management of embolic and neurologic complications. Naturopathic role: After acute treatment, address injection-drug harm reduction, nutrition, dental health, smoking, sleep, and treatment adherence. Pharmacology safety: Rifampin and other antibiotics may have major drug interactions. Aminoglycosides and several other agents require renal and toxicity monitoring. Referral: Immediate hospital and cardiology or infectious-disease assessment. Clinical pearl: Prior antibiotic exposure may reduce blood-culture yield. NPLEX trap: Do not dismiss prolonged fever and a murmur as a viral illness. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Infectious Diseases Society of America and/or Surviving Sepsis Campaign. Current evidence-based guidance relevant to this infection and its complications.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

43

Acute Liver Failure After Supplement Exposure

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 36-year-old woman presents with nausea, vomiting, profound fatigue, jaundice, and increasing confusion. She has no previous liver disease. For the past two months, she has used several concentrated weight-loss and “detox” supplements purchased online. She denies acetaminophen use and alcohol consumption. Vital signs: • BP: 102/66 mmHg • HR: 108/min • Temperature: 37.6°C Examination demonstrates jaundice, asterixis, and disorientation. Laboratory findings: • AST: 4,860 U/L • ALT: 5,240 U/L • Total bilirubin: markedly elevated • INR: 3.1 • Glucose: 3.2 mmol/L • Creatinine: elevated • Ammonia: elevated Ultrasound shows no biliary obstruction and no evidence of chronic cirrhosis.

Question 1 of 5NPLEX-ICC-211

What is the most likely clinical syndrome?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-212

What is the most appropriate next step?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-213

Which history is particularly important?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-214

Which treatment may be considered even in selected non-acetaminophen acute liver failure cases?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-215

Which naturopathic recommendation is inappropriate?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Acute liver failure, potentially related to an herbal or dietary supplement. Key differentials: Acetaminophen toxicity, viral hepatitis, autoimmune hepatitis, ischemic hepatitis, Wilson disease, pregnancy-associated liver disease, Amanita poisoning, vascular obstruction. Key investigations: Acetaminophen level, toxicology history, viral serology, autoimmune studies, pregnancy testing, ceruloplasmin and hemolysis assessment when appropriate, CBC, electrolytes, glucose, INR, ammonia, renal function, blood cultures, and liver imaging. Treatment: Intensive-care stabilization, discontinuation of suspected agents, N-acetylcysteine when indicated, glucose management, cerebral-edema precautions, infection surveillance, and urgent transplant evaluation. Naturopathic role: Supply a precise supplement history and discontinue suspect products. Report serious supplement reactions to the appropriate regulatory authority. Pharmacology safety: Medication doses may require adjustment as hepatic and renal function deteriorate. Sedatives can obscure worsening encephalopathy. Referral: Immediate transfer to a liver-transplant centre. Clinical pearl: The degree of aminotransferase elevation does not determine whether the liver will recover. NPLEX trap: Jaundice plus confusion is not an indication for a detoxification program. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American College of Gastroenterology, American Gastroenterological Association, and/or American Association for the Study of Liver Diseases. Current guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

44

Necrotizing Fasciitis

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 57-year-old man with diabetes presents with rapidly worsening pain in his left lower leg after sustaining a small cut two days ago. Vital signs: • BP: 84/52 mmHg • HR: 132/min • RR: 28/min • Temperature: 39.2°C The leg has a small area of erythema, but the pain is extreme and extends well beyond the visible skin changes. Several dusky patches and hemorrhagic bullae have developed. Palpation produces crepitus. Laboratory findings show leukocytosis, elevated lactate, acute kidney injury, hyponatremia, and elevated creatine kinase.

Question 1 of 5NPLEX-ICC-216

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-217

What is the most important treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-218

What antimicrobial approach is initially appropriate?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-219

If group A streptococcal necrotizing fasciitis is confirmed, which combination is commonly used?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-220

Which naturopathic intervention is contraindicated?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Necrotizing fasciitis with septic shock. Key differentials: Severe cellulitis, pyomyositis, clostridial myonecrosis, compartment syndrome, DVT, vasculitis, calciphylaxis. Key investigations: CBC, electrolytes, renal function, glucose, creatine kinase, lactate, blood cultures, coagulation studies, and operative deep-tissue cultures. Imaging may assist in uncertain cases but must not delay surgery. Treatment: Emergency debridement, broad-spectrum intravenous antibiotics, sepsis resuscitation, intensive-care support, and repeated surgical reassessment. Naturopathic role: None before source control. After recovery, nutrition, protein adequacy, glycemic management, rehabilitation, and wound-healing support may be considered. Pharmacology safety: NSAIDs may mask progression and worsen renal injury in shock. Antibiotic dosing must be adjusted for organ dysfunction. Referral: Immediate emergency surgical transfer. Clinical pearl: Pain out of proportion is often an earlier sign than dramatic skin necrosis. NPLEX trap: A low-risk laboratory score does not exclude necrotizing infection when the clinical picture is concerning. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Infectious Diseases Society of America and/or Surviving Sepsis Campaign. Current evidence-based guidance relevant to this infection and its complications.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

45

Severe Symptomatic Hyponatremia

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 63-year-old woman presents with headache, vomiting, confusion, and a generalized tonic–clonic seizure. Medications include: • Hydrochlorothiazide • Sertraline • Omeprazole She has also been drinking more than four litres of water daily as part of a “detoxification cleanse.” Laboratory findings: • Sodium: 112 mmol/L • Serum osmolality: low • Glucose: normal • Urine osmolality: inappropriately elevated • Urine sodium: elevated • Potassium: 3.1 mmol/L She appears clinically euvolemic.

Question 1 of 5NPLEX-ICC-221

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-222

What is the most appropriate immediate treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-223

Why must correction be carefully limited?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-224

Which factors probably contributed?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-225

Which naturopathic recommendation is inappropriate?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Severe symptomatic hypotonic hyponatremia caused by medication effects and excessive water consumption. Key differentials: Adrenal insufficiency, hypothyroidism, heart failure, cirrhosis, kidney failure, cerebral salt wasting, psychogenic polydipsia. Key investigations: Serum and urine osmolality, urine sodium, glucose, renal function, cortisol, thyroid testing, electrolytes, medication review, and assessment of volume status. Treatment: Hypertonic saline for severe symptoms, discontinuation of contributing drugs, controlled fluid management, potassium correction, and prevention or reversal of overcorrection. Naturopathic role: Educate patients that forced water consumption and low-solute cleanses can be dangerous. Fluid recommendations must be individualized. Pharmacology safety: Correcting hypokalemia may itself raise serum sodium and must be considered in the correction plan. Referral: Immediate emergency transfer. Clinical pearl: The severity of neurologic symptoms depends on both the sodium level and the speed at which it fell. NPLEX trap: Hyponatremia is usually a water-balance disorder, not simply a dietary sodium deficiency. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Current evidence-based specialty guideline or consensus statement relevant to the diagnosis, stabilization, treatment, monitoring, and referral decisions in this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

46

Acute Limb Ischemia

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 71-year-old man with atrial fibrillation develops sudden severe pain in his right leg. He stopped taking his anticoagulant before a dental procedure and did not restart it. Examination demonstrates: • A pale, cool right foot • Absent dorsalis pedis and posterior tibial pulses • Delayed capillary refill • Reduced sensation • Weak ankle movement The left foot is warm with palpable pulses.

Question 1 of 5NPLEX-ICC-226

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-227

What is the most appropriate immediate management?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-228

Which finding suggests that the limb is immediately threatened?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-229

Which investigation helps identify the level and cause of occlusion?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-230

Which naturopathic intervention is contraindicated?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Acute right-leg ischemia, probably from a cardiac embolus. Key differentials: Massive DVT, compartment syndrome, phlegmasia cerulea dolens, peripheral neuropathy, acute arterial thrombosis, aortic dissection. Key investigations: Vascular examination, handheld Doppler, CT angiography, ECG, CBC, electrolytes, renal function, coagulation studies, cardiac evaluation, and echocardiography when an embolic source is suspected. Treatment: Anticoagulation when appropriate, urgent embolectomy, catheter-directed thrombolysis, thrombectomy, bypass, or another reperfusion strategy based on limb viability and anatomy. Naturopathic role: Following reperfusion, support smoking cessation, diabetes and lipid management, medication adherence, nutrition, and safe rehabilitation. Pharmacology safety: Anticoagulant interruption should be individualized to procedural bleeding risk and thromboembolic risk. Referral: Immediate vascular emergency transfer. Clinical pearl: The onset of weakness suggests that the time available to save the limb is becoming very short. NPLEX trap: Compression treatment appropriate for venous disease is dangerous when acute arterial ischemia is suspected. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American Heart Association and American College of Cardiology. Current evidence-based cardiovascular emergency and disease-specific clinical practice guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

47

Acute Epiglottitis

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 45-year-old man presents with rapidly progressive severe sore throat, difficulty swallowing, drooling, muffled speech, and noisy breathing. Vital signs: • BP: 146/88 mmHg • HR: 124/min • RR: 30/min • SpO₂: 91% • Temperature: 39.0°C He sits upright, leaning forward, and refuses to lie down. Inspiratory stridor is audible. The visible oropharynx appears relatively normal.

Question 1 of 5NPLEX-ICC-231

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-232

What is the most appropriate immediate action?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-233

Which antimicrobial approach is generally appropriate?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-234

Which finding distinguishes epiglottitis from uncomplicated croup?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-235

Which naturopathic intervention is contraindicated?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Acute epiglottitis with threatened upper-airway obstruction. Key differentials: Anaphylaxis, bacterial tracheitis, peritonsillar abscess, retropharyngeal abscess, foreign body, angioedema. Key investigations: Epiglottitis is primarily a clinical emergency. Flexible laryngoscopy, imaging, blood cultures, and epiglottic cultures are performed only when airway safety permits. Treatment: Controlled airway management, oxygen, intravenous antibiotics, fluid support, and intensive observation. Naturopathic role: None before airway stabilization. Prevention includes routine vaccination and smoking cessation. Pharmacology safety: Sedatives can reduce airway tone and respiratory drive. Oral medications should be avoided when swallowing is unsafe. Referral: Immediate emergency airway transfer. Clinical pearl: Severe throat pain with a relatively normal-looking oral pharynx is an important warning sign. NPLEX trap: Do not force a distressed patient with suspected epiglottitis to lie flat. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Canadian Paediatric Society and/or American Academy of Pediatrics. Current pediatric guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

48

Eclampsia

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 30-year-old woman at 36 weeks’ gestation develops a generalized tonic–clonic seizure in the waiting room. Before the seizure, she complained of severe headache, blurred vision, and epigastric pain. Vital signs after the seizure: • BP: 186/118 mmHg • HR: 116/min • SpO₂: 90% Examination demonstrates hyperreflexia and significant facial and hand edema. Laboratory findings: • Platelets: 74 × 10⁹/L • AST and ALT: elevated • Creatinine: elevated • Urine protein: markedly elevated

Question 1 of 5NPLEX-ICC-236

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-237

What is the first medication used to treat and prevent recurrent eclamptic seizures?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-238

What additional treatment is urgently required?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-239

What is the definitive management after maternal stabilization?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-240

Which naturopathic intervention is inappropriate?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Eclampsia with severe maternal organ involvement and probable HELLP-spectrum disease. Key differentials: Epilepsy, cerebral venous thrombosis, intracranial hemorrhage, brain tumour, hypoglycemia, toxic ingestion, posterior reversible encephalopathy syndrome. Key investigations: CBC and platelets, liver enzymes, renal function, electrolytes, urine protein assessment, coagulation studies, fetal monitoring, and neuroimaging when atypical features suggest another cause. Treatment: Airway and oxygenation support, magnesium sulfate, treatment of severe hypertension, careful fluid management, maternal and fetal monitoring, and delivery after stabilization. Naturopathic role: None during the emergency. Postpartum care should include cardiovascular-risk counselling and blood-pressure follow-up. Pharmacology safety: Magnesium toxicity may cause loss of reflexes, respiratory depression, and cardiac toxicity. Respiratory status, reflexes, urine output, and magnesium exposure require monitoring; intravenous calcium is used for serious toxicity. Referral: Immediate obstetric emergency transfer. Clinical pearl: Eclampsia can occur before labour, during labour, or postpartum. NPLEX trap: Do not assume a pregnant patient’s seizure is epilepsy until eclampsia has been considered. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Society of Obstetricians and Gynaecologists of Canada and/or American College of Obstetricians and Gynecologists. Current guidance relevant to this obstetric or gynecologic emergency.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

49

Acute Cardiogenic Pulmonary Edema

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 74-year-old man with heart failure and hypertension presents with sudden severe breathlessness after missing his diuretic for four days. Vital signs: • BP: 206/118 mmHg • HR: 124/min • RR: 36/min • SpO₂: 78% on room air He is unable to lie flat and produces pink, frothy sputum. Examination demonstrates: • Diffuse bilateral crackles • Elevated jugular venous pressure • An S3 heart sound • Bilateral leg edema Chest radiograph shows bilateral perihilar air-space opacities and vascular congestion.

Question 1 of 5NPLEX-ICC-241

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-242

What is the most appropriate immediate management?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-243

Which medication is appropriate for significant volume overload?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-244

In severe hypertensive pulmonary edema, which additional treatment may rapidly reduce cardiac filling pressures?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-245

Which naturopathic recommendation is inappropriate?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Acute hypertensive cardiogenic pulmonary edema. Key differentials: Pneumonia, ARDS, pulmonary embolism, COPD exacerbation, acute mitral regurgitation, myocardial infarction, renal failure. Key investigations: ECG, chest radiograph, cardiac markers, BNP or NT-proBNP, CBC, electrolytes, renal function, blood gas, bedside ultrasound, and echocardiography. Treatment: Oxygen and noninvasive ventilation when indicated, intravenous loop diuretic, vasodilator therapy in selected hypertensive patients, and treatment of precipitating ischemia, arrhythmia, infection, or medication nonadherence. Naturopathic role: After stabilization, support medication adherence, appropriate sodium guidance, daily weights, physical activity, sleep-apnea treatment, and avoidance of NSAIDs. Pharmacology safety: NSAIDs may cause sodium retention, kidney dysfunction, and worsening heart failure. Licorice may cause sodium retention, hypertension, and hypokalemia. Referral: Immediate emergency transfer. Clinical pearl: Patients with pulmonary edema may deteriorate too quickly to tolerate prolonged outpatient evaluation. NPLEX trap: Do not administer a routine large fluid bolus to a clearly congested, hypertensive patient. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American Heart Association and American College of Cardiology. Current evidence-based cardiovascular emergency and disease-specific clinical practice guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

50

Methanol Poisoning

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 43-year-old man presents with headache, vomiting, abdominal pain, confusion, and blurred vision. He reports drinking a homemade alcoholic beverage approximately 18 hours earlier. He describes his vision as “looking through a snowstorm.” Vital signs: • BP: 104/64 mmHg • HR: 118/min • RR: 34/min with deep respirations • SpO₂: 97% Laboratory findings: • pH: 7.12 • Bicarbonate: 8 mmol/L • Anion gap: markedly elevated • Measured serum osmolality: elevated • Osmolal gap: elevated • Lactate: mildly elevated Funduscopic examination demonstrates optic-disc hyperemia.

Question 1 of 5NPLEX-ICC-246

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-247

What is the preferred antidote?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-248

Which treatment is indicated for severe acidosis, visual toxicity, or major clinical deterioration?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-249

What additional treatment may enhance formate metabolism?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-250

Which recommendation is appropriate when several people consumed the same beverage?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Severe methanol poisoning with visual toxicity and high-anion-gap metabolic acidosis. Key differentials: Ethylene-glycol poisoning, salicylate toxicity, alcoholic ketoacidosis, DKA, lactic acidosis, isopropanol ingestion. Key investigations: Blood gas, electrolytes, measured osmolality, anion and osmolal gaps, glucose, renal function, methanol and ethanol concentrations, ECG, visual examination, and evaluation for coingestants. Treatment: Fomepizole, bicarbonate for clinically significant acidosis, folate therapy, hemodialysis when indicated, airway and cardiovascular support, and poison-centre consultation. Naturopathic role: No home detoxification method is safe. Prevention includes avoiding unregulated alcohol, industrial solvents, windshield-washer fluid, and improperly distilled beverages. Pharmacology safety: Activated charcoal does not meaningfully adsorb methanol. An osmolal gap may fall as toxic metabolites accumulate, so a normal late osmolal gap does not exclude poisoning. Referral: Immediate emergency and medical-toxicology assessment. Clinical pearl: The patient may initially appear intoxicated and later deteriorate after a symptom-free period. NPLEX trap: Do not wait for a confirmed methanol concentration before starting antidotal treatment in a strongly suspected severe exposure. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Goldfrank’s Toxicologic Emergencies, current edition, together with current poison-centre and medical-toxicology guidance relevant to this exposure.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

51

Tension Pneumothorax

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 29-year-old man is brought to an urgent-care clinic after a motorcycle collision. He struck the right side of his chest against the handlebars. He becomes increasingly restless and short of breath. Vital signs: • BP: 78/46 mmHg • HR: 138/min • RR: 34/min • SpO₂: 82% on room air Examination demonstrates: • Severe respiratory distress • Distended neck veins • Markedly reduced right-sided chest movement • Absent breath sounds over the right hemithorax • Hyperresonance to percussion on the right • Tracheal deviation toward the left • Cool, mottled extremities

Question 1 of 5NPLEX-ICC-251

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-252

What is the most appropriate immediate action?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-253

What is the definitive treatment following emergency decompression?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-254

Which statement about tracheal deviation is correct?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-255

Which naturopathic or physical intervention is contraindicated?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Traumatic tension pneumothorax causing obstructive shock. Key differentials: Massive hemothorax, cardiac tamponade, pulmonary contusion, airway obstruction, massive pulmonary embolism, diaphragmatic rupture. Key investigations: Tension pneumothorax is treated clinically before imaging in an unstable patient. After decompression, chest radiography, point-of-care ultrasound, blood gas, CBC, blood type and crossmatch, and trauma imaging may be obtained. Treatment: Immediate pleural decompression, high-concentration oxygen, chest-tube placement, circulatory support, and treatment of associated trauma. Naturopathic role: None before stabilization. Following recovery, breathing rehabilitation and smoking cessation may support pulmonary health. Pharmacology safety: Sedatives and opioids may worsen respiratory failure and hypotension if administered without airway and circulatory monitoring. Referral: Immediate trauma-centre transfer. Clinical pearl: Do not wait for radiographic confirmation in a patient with compatible trauma, unilateral absent breath sounds, and hemodynamic collapse. NPLEX trap: A tension pneumothorax is not treated as a simple, stable pneumothorax. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Current evidence-based specialty guideline or consensus statement relevant to the diagnosis, stabilization, treatment, monitoring, and referral decisions in this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

52

Hyperosmolar Hyperglycemic State

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

An 81-year-old woman with type 2 diabetes is brought in because of progressive confusion and weakness. She has had fever, urinary frequency, and poor fluid intake for four days. Medications include metformin and gliclazide. She has not taken her medications for three days. Vital signs: • BP: 88/54 mmHg • HR: 124/min • RR: 22/min • Temperature: 38.5°C Examination demonstrates profound dehydration, dry mucous membranes, delayed capillary refill, and disorientation. Laboratory findings: • Glucose: 48 mmol/L • Effective serum osmolality: 336 mOsm/kg • Sodium: 151 mmol/L • Bicarbonate: 21 mmol/L • Venous pH: 7.35 • Beta-hydroxybutyrate: mildly elevated • Creatinine: elevated • Urinalysis: pyuria and nitrites

Question 1 of 5NPLEX-ICC-256

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-257

What is the most important initial treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-258

Why must potassium be monitored before and during insulin therapy?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-259

Why should glucose and serum osmolality not be corrected excessively rapidly?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-260

Which naturopathic recommendation is appropriate during the acute episode?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: HHS precipitated by urinary infection, medication interruption, and dehydration. Key differentials: DKA, sepsis-associated encephalopathy, stroke, hypernatremia, medication toxicity, severe dehydration. Key investigations: Serial glucose, electrolytes, effective osmolality, venous pH, beta-hydroxybutyrate, renal function, CBC, urinalysis, urine and blood cultures, ECG, and evaluation for myocardial ischemia or stroke when indicated. Treatment: Controlled intravenous fluids, insulin, potassium-guided electrolyte replacement, treatment of infection, thrombosis-risk assessment, and close neurologic and renal monitoring. Naturopathic role: After recovery, support hydration planning, medication adherence, safe nutrition, glucose monitoring, and individualized sick-day instructions. Pharmacology safety: Sulfonylureas may cause hypoglycemia after the acute illness or with reduced food intake. Metformin is generally withheld during severe dehydration, hypoperfusion, or acute kidney injury. Referral: Immediate emergency transfer. Clinical pearl: Neurologic dysfunction in HHS correlates strongly with hyperosmolality. NPLEX trap: Do not treat the glucose number alone while neglecting dehydration, potassium, osmolality, and the precipitating illness. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American Diabetes Association. Standards of Care in Diabetes. Current edition.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

53

Acute Mesenteric Ischemia

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 74-year-old woman with atrial fibrillation develops sudden, severe, diffuse abdominal pain. She describes the pain as unbearable, but the initial abdominal examination reveals only mild diffuse tenderness. She stopped taking warfarin two weeks ago. Vital signs: • BP: 102/66 mmHg • HR: 128/min, irregular • RR: 26/min • Temperature: 37.5°C Laboratory findings: • WBC: elevated • Lactate: 4.2 mmol/L • Bicarbonate: 17 mmol/L • D-dimer: elevated • Creatinine: mildly elevated

Question 1 of 5NPLEX-ICC-261

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-262

What is the preferred diagnostic imaging study?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-263

What is the most appropriate immediate management?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-264

Which finding suggests progression to bowel infarction?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-265

Which naturopathic intervention is contraindicated?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Acute embolic mesenteric ischemia caused by atrial fibrillation. Key differentials: Perforated ulcer, pancreatitis, aortic dissection, bowel obstruction, ruptured abdominal aneurysm, gastroenteritis, ischemic colitis. Key investigations: CT angiography, CBC, electrolytes, renal function, lactate, blood gas, coagulation studies, ECG, cardiac assessment, and blood type and crossmatch. Treatment: Fluid resuscitation, antibiotics, anticoagulation when appropriate, endovascular or surgical revascularization, and resection of nonviable bowel. Naturopathic role: None before reperfusion. Following recovery, nutrition may require specialist support depending on bowel loss or malabsorption. Pharmacology safety: Anticoagulation decisions require assessment of active bleeding and operative needs. Vasoconstrictive medications can worsen nonocclusive mesenteric ischemia. Referral: Immediate emergency surgical transfer. Clinical pearl: A relatively benign early abdominal examination does not exclude catastrophic ischemia. NPLEX trap: Do not wait for peritoneal signs; these may indicate that bowel infarction has already occurred. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American College of Gastroenterology, American Gastroenterological Association, and/or American Association for the Study of Liver Diseases. Current guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

54

Acute Compartment Syndrome

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 31-year-old man sustained a closed tibial fracture that was reduced and placed in a circumferential cast six hours ago. He now reports rapidly worsening lower-leg pain despite repeated opioid doses. Examination demonstrates: • A tense, swollen anterior leg compartment • Severe pain with passive extension of the toes • Paresthesia over the first web space • Intact but diminished pedal pulses • Increasing anxiety and agitation

Question 1 of 5NPLEX-ICC-266

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-267

What is the most appropriate immediate action?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-268

What is the definitive treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-269

Which statement about peripheral pulses is correct?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-270

When is compartment-pressure measurement most useful?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Acute anterior-leg compartment syndrome following a tibial fracture. Key differentials: Severe fracture pain, arterial injury, DVT, cellulitis, peripheral nerve injury, complex regional pain syndrome. Key investigations: Primarily a clinical diagnosis. Compartment-pressure monitoring, fracture imaging, creatine kinase, renal function, electrolytes, and urinalysis may support assessment. Treatment: Split dressings or casts, immediate orthopedic consultation, fasciotomy, fracture stabilization, and management of rhabdomyolysis. Naturopathic role: No massage, acupuncture, hydrotherapy, compression, or manipulation before decompression. Rehabilitation may be considered after tissue viability and surgical healing are established. Pharmacology safety: Increasing analgesia without reassessing disproportionate pain can obscure progression. Referral: Immediate orthopedic emergency transfer. Clinical pearl: Pain with passive stretch is one of the most useful early warning findings. NPLEX trap: Do not wait for paralysis or absent pulses; these are late signs. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Current evidence-based specialty guideline or consensus statement relevant to the diagnosis, stabilization, treatment, monitoring, and referral decisions in this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

55

Neuroleptic Malignant Syndrome

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 28-year-old man with schizophrenia is brought to the emergency clinic four days after his haloperidol dose was increased. He has become confused, minimally responsive, and increasingly rigid. Vital signs: • BP: fluctuates between 92/54 and 188/108 mmHg • HR: 138/min • RR: 28/min • Temperature: 40.3°C Examination demonstrates: • Generalized “lead-pipe” rigidity • Diaphoresis • Mutism • Tremor • Reduced responsiveness Laboratory findings: • Creatine kinase: 14,000 U/L • WBC: elevated • Creatinine: elevated • Potassium: elevated • Urinalysis: positive for heme with few red blood cells

Question 1 of 5NPLEX-ICC-271

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-272

What is the most important immediate action?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-273

Which medication may be considered in a severe case under specialist management?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-274

Which feature favors NMS over serotonin syndrome?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-275

Which naturopathic intervention is inappropriate?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Haloperidol-associated neuroleptic malignant syndrome with rhabdomyolysis and acute kidney injury. Key differentials: Serotonin syndrome, malignant hyperthermia, severe catatonia, heat stroke, anticholinergic toxicity, sepsis, thyroid storm. Key investigations: CK, CBC, electrolytes, renal and liver function, urinalysis, ECG, coagulation studies, blood gas, cultures, toxicology assessment, and brain or CSF evaluation when alternative causes remain possible. Treatment: Stop dopamine antagonists, intensive supportive care, cooling, fluids, electrolyte correction, renal support, and selected use of bromocriptine, dantrolene, benzodiazepines, or electroconvulsive therapy. Naturopathic role: No acute role. After recovery, screen supplements and medications for dopamine-blocking or serotonergic activity. Pharmacology safety: NMS may also occur after abrupt withdrawal of dopaminergic medications used for Parkinson disease. Referral: Immediate emergency and intensive-care transfer. Clinical pearl: Dark urine with a positive heme reaction but few red blood cells suggests myoglobinuria from rhabdomyolysis. NPLEX trap: Do not treat severe fever and rigidity as a routine medication side effect. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Current psychiatric emergency and suicide-risk guidance from recognized professional organizations, including the VA/DoD or American Psychiatric Association as applicable.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

56

Severe Hypercalcemia of Malignancy

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 66-year-old man with metastatic squamous-cell lung cancer presents with constipation, nausea, profound weakness, thirst, polyuria, and increasing confusion. Medications and supplements include: • Hydrochlorothiazide • Calcium carbonate • Vitamin D 5,000 IU daily Vital signs: • BP: 96/60 mmHg • HR: 112/min • RR: 18/min Laboratory findings: • Corrected calcium: 4.0 mmol/L • Phosphate: low • PTH: suppressed • Creatinine: elevated • ECG: shortened QT interval

Question 1 of 5NPLEX-ICC-276

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-277

What is the appropriate initial treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-278

Which treatment combination is appropriate for severe hypercalcemia of malignancy?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-279

Why is calcitonin generally limited to 48–72 hours?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-280

Which products should be stopped during the acute episode?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Severe hypercalcemia of malignancy with dehydration, encephalopathy, and kidney injury. Key differentials: Primary hyperparathyroidism, vitamin D toxicity, granulomatous disease, medication-induced hypercalcemia, multiple myeloma, immobilization. Key investigations: Repeat total and ionized calcium, albumin, PTH, phosphate, magnesium, renal function, ECG, PTH-related peptide, vitamin D metabolites, and malignancy-directed assessment. Treatment: Intravenous fluids, calcitonin, denosumab or an intravenous bisphosphonate, treatment of the cancer, and dialysis in selected refractory cases with severe renal or cardiac limitations. Naturopathic role: Stop calcium-containing supplements, vitamin D, antacids, and products with undeclared minerals. Encourage safe mobility after stabilization when possible. Pharmacology safety: Intravenous bisphosphonates require renal assessment. Denosumab may produce prolonged hypocalcemia, particularly with severe kidney disease. Referral: Immediate hospital admission. Clinical pearl: Severe hypercalcemia can present primarily as delirium, dehydration, constipation, or renal failure. NPLEX trap: Do not assume confusion in a patient with cancer is caused by brain metastases before checking calcium. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Endocrine Society and/or American Thyroid Association. Current endocrine emergency guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

57

Primary Postpartum Hemorrhage From Uterine Atony

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 35-year-old woman has a vaginal delivery of a 4.3-kg infant after a prolonged labour. Fifteen minutes after placental delivery, she develops heavy vaginal bleeding. Estimated blood loss rapidly exceeds 1,500 mL. Vital signs: • BP: 76/42 mmHg • HR: 144/min • RR: 28/min • SpO₂: 94% Examination reveals a large, soft, boggy uterus above the umbilicus. The placenta appears complete. Her history includes asthma and severe gestational hypertension.

Question 1 of 5NPLEX-ICC-281

What is the most likely cause of the hemorrhage?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-282

What is the most appropriate initial management?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-283

Which medication should be administered early in addition to standard hemorrhage treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-284

Which uterotonic choices require particular caution in this patient?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-285

If bleeding continues despite medication and massage, what is an appropriate next intervention?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Primary postpartum hemorrhage caused by uterine atony and resulting hemorrhagic shock. Key differential framework — the four Ts: • Tone: Uterine atony • Trauma: Laceration, hematoma, uterine rupture or inversion • Tissue: Retained placenta or abnormal placental attachment • Thrombin: Coagulopathy Key investigations: CBC, coagulation profile, fibrinogen, blood type and crossmatch, electrolytes, blood gas, lactate, and bedside evaluation for retained tissue or concealed bleeding. Treatment: Uterine massage, oxytocin, additional appropriate uterotonics, tranexamic acid, intravenous fluids, blood products, correction of coagulopathy, balloon tamponade, and surgical control when necessary. Naturopathic role: No herbal uterotonic or homeopathic treatment should delay hemorrhage control. Iron and nutritional support are considered only after bleeding has been stopped. Pharmacology safety: Herbal products with antiplatelet or anticoagulant activity may worsen bleeding. Referral: Immediate obstetric emergency response. Clinical pearl: A patient may initially maintain blood pressure despite substantial obstetric blood loss. NPLEX trap: Do not focus only on estimated blood volume; act on ongoing bleeding, tachycardia, mental status, perfusion, and shock. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Society of Obstetricians and Gynaecologists of Canada and/or American College of Obstetricians and Gynecologists. Current guidance relevant to this obstetric or gynecologic emergency.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

58

Orbital Cellulitis

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 10-year-old child presents with fever, severe headache, and progressive swelling around the left eye after one week of sinusitis symptoms. Vital signs: • HR: 126/min • Temperature: 39.2°C Examination demonstrates: • Marked eyelid edema and erythema • Proptosis • Pain with eye movement • Restricted extraocular movement • Reduced visual acuity • Impaired red-colour perception • Left afferent pupillary defect

Question 1 of 5NPLEX-ICC-286

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-287

What is the most appropriate immediate management?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-288

Which imaging study is appropriate?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-289

Which finding would support urgent surgical drainage?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-290

Which naturopathic intervention is contraindicated?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Sinusitis-associated orbital cellulitis with threatened optic-nerve function. Key differentials: Preseptal cellulitis, allergic edema, cavernous-sinus thrombosis, orbital tumour, thyroid eye disease, trauma, dacryocystitis. Key investigations: Visual acuity, pupils, colour vision, ocular motility, intraocular pressure when safe, CBC, inflammatory markers, blood cultures when systemically ill, and contrast imaging. Treatment: Broad-spectrum intravenous antibiotics, sinus management, frequent visual reassessment, and drainage of an abscess when indicated. Naturopathic role: None during acute orbital infection. Saline nasal irrigation should not delay treatment and must be used cautiously after specialist advice. Pharmacology safety: Antibiotic selection must account for local resistance, sinus pathogens, MRSA risk, allergy, age, and renal function. Referral: Immediate hospital admission. Clinical pearl: Painful eye movement and proptosis distinguish orbital disease from uncomplicated eyelid cellulitis. NPLEX trap: Do not diagnose allergic swelling when fever, restricted eye movement, or impaired vision is present. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Infectious Diseases Society of America and/or Surviving Sepsis Campaign. Current evidence-based guidance relevant to this infection and its complications.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

59

Salicylate Poisoning

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 58-year-old man presents with nausea, vomiting, sweating, tinnitus, confusion, and rapid breathing. He has chronic knee pain and has been taking increasing quantities of aspirin. He also uses a concentrated wintergreen oil preparation on his skin and occasionally ingests small amounts. Vital signs: • BP: 108/64 mmHg • HR: 124/min • RR: 34/min • Temperature: 38.4°C Laboratory findings: • pH: 7.46 • PaCO₂: 21 mmHg • Bicarbonate: 15 mmol/L • Anion gap: elevated • Potassium: 3.2 mmol/L • Glucose: normal • Salicylate concentration: elevated

Question 1 of 5NPLEX-ICC-291

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-292

What acid–base pattern is present?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-293

What is a central treatment strategy?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-294

Which patient is most likely to require hemodialysis?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-295

Why is endotracheal intubation particularly hazardous?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Moderate-to-severe salicylate toxicity from aspirin and methyl-salicylate exposure. Key differentials: Sepsis, DKA, toxic alcohol ingestion, serotonin syndrome, sympathomimetic toxicity, pulmonary embolism. Key investigations: Serial salicylate concentrations, blood gas, electrolytes, glucose, renal function, ECG, chest imaging when pulmonary edema is suspected, and assessment for coingestants. Treatment: Poison-centre consultation, activated charcoal in selected patients with a protected airway, intravenous bicarbonate, potassium and glucose management, temperature control, and hemodialysis when indicated. Naturopathic role: Wintergreen oil contains concentrated methyl salicylate and can cause severe poisoning through ingestion or excessive skin exposure. “Natural” does not mean nontoxic. Pharmacology safety: Serum salicylate levels may continue rising with enteric-coated products or bezoar formation. Chronic toxicity may be severe at lower concentrations than acute toxicity. Referral: Immediate emergency and medical-toxicology assessment. Clinical pearl: A normal serum glucose does not guarantee adequate glucose delivery to the brain; dextrose may be considered in patients with neuroglycopenic symptoms. NPLEX trap: Do not treat tachypnea with respiratory suppression before recognizing salicylate toxicity. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Goldfrank’s Toxicologic Emergencies, current edition, together with current poison-centre and medical-toxicology guidance relevant to this exposure.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

60

Guillain–Barré Syndrome

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 41-year-old man presents with progressive tingling and weakness. Two weeks earlier, he had several days of bloody diarrhea after eating undercooked poultry. The weakness began in his feet and has progressed upward over three days. He now has difficulty climbing stairs and rising from a chair. Vital signs: • BP fluctuates between 94/58 and 176/102 mmHg • HR varies between 52 and 124/min • RR: 22/min • SpO₂: 96% Examination demonstrates: • Symmetric lower-extremity weakness • Reduced upper-extremity strength • Absent knee and ankle reflexes • Reduced upper-extremity reflexes • Bilateral facial weakness • Decreased forced vital capacity

Question 1 of 5NPLEX-ICC-296

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-297

What is the most important immediate monitoring?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-298

Which cerebrospinal-fluid finding supports the diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-299

Which treatments are effective for patients with significant weakness?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-300

Which intervention is inappropriate during the progressive phase?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Guillain–Barré syndrome following probable Campylobacter jejuni infection. Key differentials: Spinal-cord compression, transverse myelitis, botulism, myasthenia gravis, tick paralysis, electrolyte disturbance, acute porphyria, diphtheritic neuropathy. Key investigations: Serial respiratory mechanics, ECG and telemetry, CBC, electrolytes, renal and liver function, lumbar puncture, nerve-conduction studies and electromyography, and spinal imaging when cord disease must be excluded. Treatment: Hospital admission, IVIG or plasma exchange, respiratory support, autonomic monitoring, DVT prevention, pain management, swallowing assessment, and rehabilitation. Naturopathic role: After the progressive phase has stabilized, individualized nutrition, gentle rehabilitation, sleep support, and management of neuropathic symptoms may complement specialist care. Pharmacology safety: Opioids, sedatives, and medications that impair neuromuscular function require caution when respiratory strength is reduced. Referral: Immediate hospital and neurologic assessment. Clinical pearl: Respiratory failure can develop even when pulse oximetry remains normal because oxygen saturation does not directly measure ventilation or respiratory-muscle reserve. NPLEX trap: Do not reassure a patient because weakness is limited to the legs at presentation; progression can occur over hours or days. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American Academy of Neurology, American College of Radiology, and/or relevant emergency neurology guidance. Current recommendations relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

61

Cardiac Tamponade

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 56-year-old woman with metastatic breast cancer presents with progressive shortness of breath, chest pressure, weakness, and dizziness. She reports that breathing becomes more difficult when she lies flat. Vital signs: • BP: 82/54 mmHg • HR: 126/min • RR: 28/min • SpO₂: 92% • Temperature: 37.2°C Examination demonstrates: • Distended neck veins • Muffled heart sounds • Cool extremities • Narrow pulse pressure • A systolic blood-pressure decrease of 18 mmHg during inspiration ECG shows sinus tachycardia with low-voltage QRS complexes and electrical alternans. Bedside echocardiography demonstrates a large pericardial effusion with right-atrial and right-ventricular diastolic collapse.

Question 1 of 5NPLEX-ICC-301

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-302

What is the most appropriate immediate treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-303

Which intervention may temporarily support the circulation while drainage is being arranged?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-304

Which medication can worsen hypotension in tamponade by reducing cardiac preload?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-305

Which naturopathic recommendation is appropriate?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Malignant pericardial effusion causing cardiac tamponade. Key differentials: Massive pulmonary embolism, tension pneumothorax, right-ventricular myocardial infarction, constrictive pericarditis, aortic dissection, severe hypovolemia. Key investigations: Bedside echocardiography, ECG, chest imaging, CBC, electrolytes, renal and liver function, coagulation studies, cardiac markers, and pericardial-fluid analysis after stabilization. Echocardiography is central to confirming the effusion and its hemodynamic effects. Treatment: Emergency pericardial drainage, circulatory and airway support, treatment of the underlying malignant, infectious, traumatic, uremic, or inflammatory cause, and monitoring for recurrence. Naturopathic role: None during shock. Following stabilization, supportive nutrition, sleep management, symptom control, and oncology-care coordination may be appropriate. Pharmacology safety: Avoid unnecessary diuresis, nitrates, and medications that cause vasodilation or sedation before definitive treatment. Referral: Immediate emergency cardiology or cardiothoracic referral. Clinical pearl: The classic Beck triad may be incomplete, especially when tamponade develops slowly. NPLEX trap: Do not assume that a large pericardial effusion is stable when hypotension, pulsus paradoxus, or chamber collapse is present. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American Heart Association and American College of Cardiology. Current evidence-based cardiovascular emergency and disease-specific clinical practice guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

62

Testicular Torsion

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 16-year-old boy presents with sudden severe left scrotal pain that began two hours ago while he was sleeping. The pain is accompanied by nausea and vomiting. He denies dysuria, urethral discharge, fever, and recent trauma. Vital signs: • BP: 128/76 mmHg • HR: 112/min • Temperature: 37.1°C Examination demonstrates: • A swollen, exquisitely tender left testicle • A high-riding testicle with a horizontal lie • An absent left cremasteric reflex • No relief of pain with scrotal elevation

Question 1 of 5NPLEX-ICC-306

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-307

What is the most appropriate next step?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-308

When is Doppler ultrasound most appropriate?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-309

What is usually performed during surgery?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-310

Which naturopathic or physical intervention is contraindicated?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Acute left testicular torsion. Key differentials: Epididymitis, torsion of the appendix testis, incarcerated inguinal hernia, trauma, orchitis, tumour with hemorrhage. Key investigations: Primarily clinical assessment. Doppler ultrasound is used when uncertainty remains and no surgical delay will result. Urinalysis and STI testing may support an alternative diagnosis but should not delay exploration. Treatment: Immediate surgical detorsion, assessment of viability, and bilateral orchiopexy. Naturopathic role: None before surgery. Postoperative care may include nutrition, safe pain management, and emotional support. Pharmacology safety: Temporary pain relief after analgesics or spontaneous partial detorsion does not exclude torsion. Referral: Immediate emergency urologic referral. Clinical pearl: Torsion may awaken a patient from sleep and often produces prominent nausea and vomiting. NPLEX trap: Do not use improvement with testicular elevation to rule torsion in or out. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Current evidence-based specialty guideline or consensus statement relevant to the diagnosis, stabilization, treatment, monitoring, and referral decisions in this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

63

Myxedema Coma

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

An 82-year-old woman with longstanding hypothyroidism is found confused and minimally responsive during winter. She has not refilled her levothyroxine for several months and recently developed pneumonia. Vital signs: • BP: 84/48 mmHg • HR: 42/min • RR: 8/min • SpO₂: 86% • Temperature: 32.4°C Examination demonstrates: • Dry, coarse skin • Periorbital edema • Delayed reflex relaxation • Diminished bowel sounds • Generalized nonpitting edema Laboratory findings: • Sodium: 118 mmol/L • Glucose: 3.4 mmol/L • TSH: markedly elevated • Free T4: very low • PaCO₂: elevated • Creatinine: elevated

Question 1 of 5NPLEX-ICC-311

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-312

What is the most appropriate immediate treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-313

What is the most appropriate temperature-management strategy?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-314

Which complication requires particular attention before giving sedating medication?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-315

Which naturopathic recommendation is inappropriate?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Myxedema coma precipitated by pneumonia and interruption of levothyroxine. Key differentials: Sepsis, adrenal crisis, hypothermia, sedative overdose, stroke, severe hyponatremia, hypercapnic respiratory failure. Key investigations: TSH and free T4, cortisol before glucocorticoid treatment when this causes no delay, CBC, electrolytes, glucose, blood gas, renal and liver function, ECG, cultures, and chest imaging. Treatment: Airway and ventilatory support, intravenous levothyroxine, empiric glucocorticoid, passive warming, cautious sodium and glucose correction, and treatment of infection. Naturopathic role: After recovery, reinforce consistent medication use and screen supplements for iodine, sedatives, or undeclared thyroid hormone. Pharmacology safety: Thyroid-hormone loading must be individualized in older adults and patients with coronary disease or arrhythmia risk. Referral: Immediate intensive-care transfer. Clinical pearl: Hypothermia may mask fever despite a serious precipitating infection. NPLEX trap: Do not delay treatment while waiting for thyroid-test results when the clinical syndrome is strongly suggestive. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Endocrine Society and/or American Thyroid Association. Current endocrine emergency guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

64

Sulfonylurea-Induced Recurrent Hypoglycemia

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 74-year-old man with type 2 diabetes and chronic kidney disease is found confused and sweating. He recently had poor appetite because of gastroenteritis but continued taking gliclazide. Capillary glucose is 1.9 mmol/L. Intravenous dextrose restores consciousness, but two hours later his glucose falls to 2.1 mmol/L again. Medications include: • Gliclazide • Metformin • Ramipril • Aspirin Vital signs are otherwise stable.

Question 1 of 5NPLEX-ICC-316

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-317

What is the immediate treatment for severe symptomatic hypoglycemia?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-318

Which medication helps prevent recurrent hypoglycemia after sulfonylurea poisoning?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-319

Why may repeated dextrose alone lead to further episodes?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-320

What is the most appropriate disposition?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Recurrent sulfonylurea-associated hypoglycemia during reduced intake and kidney dysfunction. Key differentials: Insulin overdose, sepsis, adrenal insufficiency, liver failure, insulinoma, alcohol-related hypoglycemia. Key investigations: Serial glucose, electrolytes, renal and liver function, ECG, infection assessment, medication reconciliation, and insulin or C-peptide testing in unexplained cases. Treatment: Immediate glucose correction, octreotide, monitored feeding when safe, adjustment of contributing diabetes medications, and treatment of the precipitating illness. Naturopathic role: Avoid recommending fasting, carbohydrate restriction, or glucose-lowering supplements while the medication regimen is unstable. Pharmacology safety: Older adults and patients with renal impairment are especially vulnerable to prolonged medication-related hypoglycemia. Referral: Emergency assessment for altered consciousness, seizure, recurrent hypoglycemia, uncertain ingestion, or inability to maintain oral intake. Clinical pearl: A normal glucose after dextrose does not mean the poisoning has resolved. NPLEX trap: Do not repeatedly administer dextrose without considering ongoing drug-driven insulin secretion. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American Diabetes Association. Standards of Care in Diabetes. Current edition.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

65

Opioid Overdose

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 32-year-old man is found unresponsive in a restaurant washroom. Drug paraphernalia and an unknown white powder are nearby. Vital signs: • BP: 92/56 mmHg • HR: 54/min • RR: 4/min • SpO₂: 68% • Temperature: 35.8°C Examination demonstrates: • Pinpoint pupils • Cyanotic lips • Shallow, irregular respirations • Minimal response to painful stimulation

Question 1 of 5NPLEX-ICC-321

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-322

What is the immediate treatment priority?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-323

What should be done if the patient does not respond adequately to the first naloxone dose?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-324

Why is observation necessary after apparent recovery?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-325

What is the most appropriate longer-term intervention after stabilization?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Opioid overdose causing severe respiratory depression. Key differentials: Sedative-hypnotic overdose, intracranial hemorrhage, hypoglycemia, carbon-monoxide poisoning, clonidine toxicity, postictal state. Key investigations: Primarily a clinical diagnosis. Check glucose, ECG, electrolytes, blood gas, acetaminophen level, and additional studies based on suspected coingestants and complications. Treatment: Airway support, assisted ventilation, naloxone, repeated dosing or infusion when needed, treatment of aspiration or pulmonary edema, and monitored observation. Naturopathic role: No botanical or stimulant product replaces ventilation or naloxone. Harm reduction and supportive nutrition may become relevant after stabilization. Pharmacology safety: Naloxone may precipitate acute withdrawal, but lifesaving reversal of respiratory depression takes priority. Referral: Immediate emergency transfer. Clinical pearl: Ventilation is more important than waiting for naloxone to take effect. NPLEX trap: A normal or improving level of consciousness is not sufficient for discharge if respiration may decline again. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Goldfrank’s Toxicologic Emergencies, current edition, together with current poison-centre and medical-toxicology guidance relevant to this exposure.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

66

Alcohol Withdrawal Delirium

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 52-year-old man with severe alcohol-use disorder is admitted after stopping alcohol abruptly three days ago. He previously consumed approximately one litre of spirits daily. He becomes agitated, disoriented, and frightened. He reports seeing insects crawling across the walls. Vital signs: • BP: 184/108 mmHg • HR: 142/min • RR: 26/min • Temperature: 38.4°C Examination demonstrates: • Severe tremor • Profuse sweating • Visual hallucinations • Disorientation • Marked psychomotor agitation Laboratory findings show hypomagnesemia, hypokalemia, thrombocytopenia, and elevated liver enzymes.

Question 1 of 5NPLEX-ICC-326

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-327

What is the first-line pharmacologic treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-328

Which vitamin should be administered promptly?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-329

Why should an antipsychotic not be used as the sole treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-330

Which naturopathic recommendation is inappropriate?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Alcohol withdrawal delirium with severe autonomic hyperactivity. Key differentials: Sepsis, hepatic encephalopathy, intracranial hemorrhage, sedative withdrawal, stimulant toxicity, hypoglycemia, Wernicke encephalopathy. Key investigations: Glucose, CBC, electrolytes, magnesium, phosphate, renal and liver function, ECG, blood alcohol level, toxicology testing, cultures, and brain imaging when trauma or another neurologic cause is possible. Treatment: Benzodiazepines, thiamine, fluid and electrolyte management, seizure precautions, treatment of coexisting illness, and intensive monitoring. Naturopathic role: Following stabilization, nutrition, sleep, counselling, peer support, and evidence-based treatment for alcohol-use disorder may be integrated. Pharmacology safety: Beta-blockers and clonidine may reduce autonomic signs but can mask severity and do not prevent seizures or delirium when used alone. Referral: Immediate hospital or intensive-care management. Clinical pearl: Withdrawal delirium is characterized by impaired attention and disorientation, not hallucinations alone. NPLEX trap: Do not treat a high withdrawal score with antipsychotic monotherapy. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Current psychiatric emergency and suicide-risk guidance from recognized professional organizations, including the VA/DoD or American Psychiatric Association as applicable.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

67

Toxic Megacolon in Ulcerative Colitis

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 33-year-old woman with ulcerative colitis presents with worsening bloody diarrhea, abdominal distention, fever, and profound weakness. She has been taking loperamide several times daily to control diarrhea. Vital signs: • BP: 92/58 mmHg • HR: 132/min • RR: 24/min • Temperature: 39.1°C Examination demonstrates: • Marked abdominal distention • Diffuse tenderness • Reduced bowel sounds • Dehydration Laboratory findings: • Hemoglobin: 88 g/L • WBC: 18.5 × 10⁹/L • CRP: markedly elevated • Potassium: 2.9 mmol/L • Albumin: low Abdominal radiography shows transverse-colon dilation measuring 7.2 cm without free intraperitoneal air.

Question 1 of 5NPLEX-ICC-331

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-332

What is the most appropriate initial management?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-333

Which medication should be stopped?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-334

Which treatment is appropriate when ulcerative colitis is the cause and perforation is not present?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-335

Which finding is an indication for urgent surgery?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Toxic megacolon due to acute severe ulcerative colitis, potentially aggravated by antimotility medication and hypokalemia. Key differentials: Fulminant C. difficile colitis, infectious colitis, ischemic colitis, mechanical obstruction, volvulus, Crohn colitis. Key investigations: Serial abdominal radiographs or selective CT, CBC, electrolytes, renal and liver function, CRP, albumin, lactate, stool testing for infection, and limited flexible sigmoidoscopy when clinically appropriate. Treatment: Resuscitation, bowel rest, electrolyte correction, thrombosis prevention, intravenous corticosteroids for inflammatory colitis, infection-specific treatment, rescue therapy in selected patients, and timely surgery. Naturopathic role: No fasting cleanse, enema, high-fibre therapy, probiotic megadosing, or colon hydrotherapy during toxic megacolon. Pharmacology safety: Stop opioids, anticholinergics, and antidiarrheal agents. NSAIDs may aggravate inflammatory bowel disease and bleeding. Referral: Immediate hospital admission with early colorectal-surgery involvement. Clinical pearl: Falling stool frequency does not necessarily indicate improvement if the colon is becoming atonic and increasingly dilated. NPLEX trap: Do not treat severe bloody diarrhea with loperamide before excluding toxic colitis. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American College of Gastroenterology, American Gastroenterological Association, and/or American Association for the Study of Liver Diseases. Current guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

68

Infantile Hypertrophic Pyloric Stenosis

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A five-week-old boy is brought in because of progressively forceful vomiting after feeds. The vomiting is nonbilious and occasionally travels more than one metre. The infant appears hungry immediately after vomiting but has poor weight gain and fewer wet diapers. Examination demonstrates: • Dry mucous membranes • A sunken anterior fontanelle • Visible gastric peristaltic waves • A small, firm “olive” in the right upper abdomen Laboratory findings: • Sodium: 132 mmol/L • Potassium: 3.0 mmol/L • Chloride: 83 mmol/L • Bicarbonate: 35 mmol/L • Venous pH: 7.50

Question 1 of 5NPLEX-ICC-336

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-337

What acid–base abnormality is present?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-338

What is the preferred diagnostic investigation?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-339

What must occur before definitive surgery?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-340

What is the definitive treatment?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Infantile hypertrophic pyloric stenosis with dehydration and chloride-responsive metabolic alkalosis. Key differentials: Gastroesophageal reflux, milk-protein allergy, sepsis, increased intracranial pressure, adrenal insufficiency, intestinal malrotation or volvulus. Key investigations: Ultrasound, electrolytes, blood gas, glucose, renal function, weight assessment, and hydration evaluation. Treatment: Stop feeding temporarily, provide intravenous fluids and electrolyte correction, decompress the stomach when indicated, and perform pyloromyotomy after stabilization. Naturopathic role: Do not attempt home oral rehydration, feed thickening, herbal antispasmodics, or manipulation when persistent projectile vomiting and dehydration are present. Pharmacology safety: Macrolide exposure is a recognized risk factor, but pyloric stenosis is not treated by simply discontinuing the medication once obstruction has developed. Referral: Immediate pediatric emergency and surgical referral. Clinical pearl: Vomitus is nonbilious because the obstruction lies proximal to the duodenum. NPLEX trap: A hungry infant after vomiting is not necessarily reassured; this is a classic pyloric-stenosis feature. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Canadian Paediatric Society and/or American Academy of Pediatrics. Current pediatric guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

69

ANCA-Associated Pulmonary–Renal Syndrome

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 58-year-old man presents with fatigue, fever, joint pain, sinus congestion, hemoptysis, and rapidly worsening shortness of breath. Vital signs: • BP: 158/92 mmHg • HR: 118/min • RR: 30/min • SpO₂: 82% on room air • Temperature: 38.1°C Examination demonstrates nasal crusting, diffuse lung crackles, and purpuric lesions on both legs. Laboratory findings: • Hemoglobin: 79 g/L, previously 122 g/L • Creatinine: 356 µmol/L, previously 92 µmol/L • Urinalysis: blood, protein, dysmorphic red cells, and red-cell casts • PR3-ANCA: strongly positive CT of the chest shows diffuse bilateral ground-glass and consolidative opacities.

Question 1 of 5NPLEX-ICC-341

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-342

What is the most appropriate immediate management?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-343

Which induction regimen is appropriate for severe ANCA-associated vasculitis?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-344

When may plasma exchange be considered?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-345

Which naturopathic recommendation is inappropriate?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: PR3-ANCA-associated granulomatosis with polyangiitis causing diffuse alveolar hemorrhage and rapidly progressive glomerulonephritis. Key differentials: Anti-GBM disease, systemic lupus erythematosus, infective endocarditis, severe pneumonia, pulmonary embolism, pulmonary edema, drug-induced vasculitis. Key investigations: CBC, serial hemoglobin, renal function, urinalysis and microscopy, ANCA, anti-GBM antibodies, complement, autoimmune serology, chest CT, bronchoscopy when appropriate, cultures, and kidney biopsy when feasible. Treatment should not be delayed in a rapidly deteriorating patient solely to obtain biopsy confirmation. Treatment: Oxygen or ventilation, glucocorticoids, rituximab or cyclophosphamide, infection prevention and treatment, renal support, and selective plasma exchange. Naturopathic role: After stabilization, provide nutrition support, bone protection, vaccination review, and monitoring for immunosuppressant complications. Pharmacology safety: Cyclophosphamide, rituximab, and glucocorticoids increase infection risk and require structured monitoring and prophylaxis. Referral: Immediate hospital and specialist management. Clinical pearl: Diffuse alveolar hemorrhage may occur without large-volume hemoptysis. NPLEX trap: Do not diagnose the pulmonary opacities as infection alone when red-cell casts and rapidly worsening kidney function are present. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Kidney Disease: Improving Global Outcomes and current rheumatology guidance for ANCA-associated vasculitis.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

70

Crush Syndrome With Rhabdomyolysis

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 40-year-old construction worker is rescued after both legs were trapped beneath concrete for seven hours. Shortly after extrication, he becomes weak, nauseated, and hypotensive. Vital signs: • BP: 82/48 mmHg • HR: 132/min • RR: 26/min Examination demonstrates severe bilateral leg swelling and extensive muscle tenderness. Laboratory findings: • Potassium: 7.1 mmol/L • Creatinine: 238 µmol/L • Bicarbonate: 14 mmol/L • Calcium: 1.82 mmol/L • Creatine kinase: 68,000 U/L • Phosphate: elevated • Urinalysis: strongly positive for blood with very few red cells ECG demonstrates peaked T waves and QRS widening.

Question 1 of 5NPLEX-ICC-346

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-347

What intervention should begin as early as possible, ideally before complete extrication when feasible?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-348

What is the first medication priority for the ECG abnormalities?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-349

Which finding on urinalysis supports myoglobinuria?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-350

When may dialysis be required?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Severe crush syndrome with rhabdomyolysis, hyperkalemic cardiac toxicity, hypocalcemia, acidosis, and acute kidney injury. Key differentials: Compartment syndrome, major arterial injury, hemolysis, severe burns, neuroleptic malignant syndrome, heat stroke, seizure-induced rhabdomyolysis. Key investigations: Serial potassium, calcium, phosphate, bicarbonate, creatinine, CK, ECG, urine output, urinalysis, blood gas, coagulation studies, and trauma imaging. Treatment: Early individualized crystalloid resuscitation, emergency hyperkalemia treatment, cardiac monitoring, management of shock and acidosis, surgical assessment for compartment syndrome or devitalized tissue, and dialysis when indicated. Naturopathic role: No oral electrolyte mixture, diuretic herb, massage, sauna, or exercise should be used. Potassium-containing supplements and fluids may be dangerous. Pharmacology safety: Routine bicarbonate, mannitol, or diuretic use is not a substitute for appropriate fluids and treatment of complications; decisions should be individualized. Referral: Immediate trauma, surgical, critical-care, and nephrology management. Clinical pearl: Sudden hyperkalemia and cardiovascular collapse may occur after pressure is released and blood flow returns to crushed tissue. NPLEX trap: Do not wait for acute kidney failure before beginning fluid resuscitation and potassium monitoring. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Current evidence-based specialty guideline or consensus statement relevant to the diagnosis, stabilization, treatment, monitoring, and referral decisions in this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

71

Ruptured Abdominal Aortic Aneurysm

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 76-year-old man suddenly develops severe abdominal and lower-back pain while walking. He becomes pale, diaphoretic, and briefly loses consciousness. Medical history includes: • Hypertension • Dyslipidemia • Coronary artery disease • A 6.4-cm infrarenal abdominal aortic aneurysm • A 50-pack-year smoking history Vital signs: • BP: 72/44 mmHg • HR: 132/min • RR: 28/min • SpO₂: 93% Examination demonstrates a tender, pulsatile abdominal mass and cool, mottled extremities.

Question 1 of 5NPLEX-ICC-351

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-352

What is the most appropriate immediate action?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-353

Which imaging approach is most appropriate?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-354

What is the definitive treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-355

Which naturopathic or physical intervention is contraindicated?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Ruptured infrarenal abdominal aortic aneurysm causing hemorrhagic shock. Key differentials: Aortic dissection, renal colic, pancreatitis, perforated ulcer, mesenteric ischemia, retroperitoneal hemorrhage, myocardial infarction. Key investigations: Bedside ultrasound, CT angiography when sufficiently stable, CBC, electrolytes, renal function, coagulation studies, blood gas, lactate, ECG, and urgent blood type and crossmatch. Treatment: Controlled resuscitation, blood products, correction of major coagulopathy, emergency endovascular or open repair, and critical-care support. Naturopathic role: None before hemorrhage control. Long-term prevention includes smoking cessation, blood-pressure management, cardiovascular-risk reduction, and surveillance of remaining aortic disease. Pharmacology safety: Anticoagulants and antiplatelet drugs must be identified promptly. Reversal may be required but should occur within the emergency vascular pathway. Referral: Immediate emergency vascular-surgical transfer. Clinical pearl: The complete triad of pain, hypotension, and a pulsatile mass is not present in every ruptured AAA. NPLEX trap: Do not attribute sudden back pain and syncope in an older smoker to a musculoskeletal disorder. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American Heart Association and American College of Cardiology. Current evidence-based cardiovascular emergency and disease-specific clinical practice guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

72

Lithium Toxicity

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 64-year-old woman with bipolar disorder presents with worsening tremor, vomiting, slurred speech, unsteady gait, confusion, and intermittent muscle jerking. She developed gastroenteritis five days ago and has continued taking lithium. Medications include: • Lithium carbonate • Hydrochlorothiazide • Lisinopril • Ibuprofen several times daily Vital signs: • BP: 94/58 mmHg • HR: 106/min • RR: 20/min Laboratory findings: • Lithium concentration: 3.4 mmol/L • Creatinine: markedly elevated from baseline • Sodium: 148 mmol/L • Potassium: 3.4 mmol/L ECG demonstrates sinus-node dysfunction and a prolonged QT interval.

Question 1 of 5NPLEX-ICC-356

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-357

Which factors most likely caused the toxicity?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-358

What is the appropriate initial management?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-359

What is the most appropriate definitive treatment for this patient?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-360

Why must lithium levels be measured after dialysis?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Severe acute-on-chronic lithium toxicity caused by dehydration, kidney injury, and interacting medications. Key differentials: Serotonin syndrome, neuroleptic malignant syndrome, cerebellar stroke, sepsis, anticonvulsant toxicity, alcohol withdrawal. Key investigations: Serial lithium concentrations, electrolytes, calcium, renal function, glucose, ECG, thyroid function, urinalysis, and assessment for infection or other precipitants. Treatment: Stop lithium and interacting agents, restore volume with isotonic fluid, correct electrolytes, control seizures, and perform hemodialysis when severe clinical or laboratory criteria are present. Naturopathic role: Avoid dehydration, sodium-restricted cleanses, diuretic herbs, and NSAID-containing natural pain products in patients taking lithium. Pharmacology safety: Lithium has a narrow therapeutic index. Medication changes involving diuretics, renin–angiotensin inhibitors, NSAIDs, or major sodium and fluid changes require close monitoring. Referral: Immediate emergency, poison-centre, and nephrology assessment. Clinical pearl: The clinical condition is more important than interpreting a lithium number in isolation. NPLEX trap: Do not use activated charcoal as the primary gastrointestinal decontamination treatment for lithium. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Goldfrank’s Toxicologic Emergencies, current edition, together with current poison-centre and medical-toxicology guidance relevant to this exposure.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

73

Acute Chest Syndrome in Sickle Cell Disease

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 24-year-old man with sickle cell disease is admitted with severe back and leg pain. On the second hospital day, he develops fever, chest pain, cough, and increasing shortness of breath. Vital signs: • BP: 112/68 mmHg • HR: 126/min • RR: 30/min • SpO₂: 86% on room air • Temperature: 39.0°C Examination demonstrates reduced breath sounds and crackles at the right lung base. Chest radiography shows a new right-lower-lobe infiltrate. Laboratory findings: • Hemoglobin: 66 g/L, below baseline • Reticulocyte count: elevated • WBC: elevated

Question 1 of 5NPLEX-ICC-361

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-362

What is the most appropriate management?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-363

Why is incentive spirometry important?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-364

When should exchange transfusion be strongly considered?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-365

Which treatment approach is unsafe?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Acute chest syndrome complicating a vaso-occlusive episode. Key differentials: Bacterial or viral pneumonia, pulmonary embolism, asthma, pulmonary edema, pneumothorax, rib infarction without pulmonary involvement. Key investigations: Serial oxygen saturation, chest imaging, CBC, reticulocyte count, blood type and crossmatch, blood cultures when febrile, respiratory testing, renal and liver function, and blood gas in severe disease. Treatment: Oxygen, empiric antibiotics, incentive spirometry, cautious hydration, pain control, bronchodilator therapy when bronchospasm is present, and simple or exchange transfusion according to severity. Naturopathic role: No botanical treatment should delay oxygen or transfusion. Long-term support includes hydration planning, vaccination, smoking avoidance, medication adherence, and individualized nutrition. Pharmacology safety: Meperidine is generally avoided because its metabolite may provoke seizures. Excessive opioid sedation can aggravate hypoventilation. Referral: Immediate hospital treatment, with intensive-care and hematology involvement for severe disease. Clinical pearl: A patient admitted for pain may develop acute chest syndrome after hospitalization, especially when shallow breathing and atelectasis occur. NPLEX trap: Do not diagnose a new pulmonary infiltrate in sickle cell disease as uncomplicated pneumonia without considering acute chest syndrome. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American Society of Hematology and/or relevant gastroenterology guidance. Current recommendations relevant to this hematologic presentation.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

74

Pheochromocytoma Crisis

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 46-year-old woman presents with severe headache, palpitations, diaphoresis, chest pressure, and vomiting. She has experienced intermittent episodes for several months. Earlier that day, she was given metoclopramide for nausea. Vital signs fluctuate rapidly: • BP ranges from 238/136 to 86/52 mmHg • HR: 148/min • RR: 28/min • SpO₂: 89% Examination reveals pallor, tremor, pulmonary crackles, and cool extremities. Laboratory findings demonstrate elevated cardiac troponin, hyperglycemia, lactic acidosis, and markedly elevated plasma free metanephrines. CT identifies a 5-cm right adrenal mass.

Question 1 of 5NPLEX-ICC-366

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-367

Which biochemical test is appropriate for suspected pheochromocytoma?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-368

What is the most important medication principle?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-369

What is the definitive treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-370

Which naturopathic recommendation is inappropriate?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Pheochromocytoma crisis with labile shock, pulmonary edema, and catecholamine-mediated cardiac injury. Key differentials: Thyroid storm, stimulant toxicity, serotonin syndrome, panic disorder, autonomic dysreflexia, acute coronary syndrome, cocaine exposure. Key investigations: Plasma free or urinary fractionated metanephrines, electrolytes, glucose, renal function, cardiac markers, ECG, echocardiography, adrenal imaging, and genetic evaluation after stabilization. Treatment: Intensive hemodynamic monitoring, short-acting intravenous vasodilator or alpha-blocking therapy, cautious fluid replacement, management of arrhythmia and heart failure, and delayed definitive surgery after stabilization. Naturopathic role: Avoid stimulants, decongestants, weight-loss supplements, licorice, and unregulated adrenal products. Complementary treatment must not replace alpha blockade or surgery. Pharmacology safety: Beta-blockers must not be initiated before adequate alpha control. Dopamine antagonists, sympathomimetics, and several other medications may provoke crisis. Referral: Immediate endocrine, critical-care, cardiology, and surgical management. Clinical pearl: Pheochromocytoma crisis may produce either severe hypertension or profound hypotension. NPLEX trap: Do not give isolated beta-blockade for severe tachycardia before controlling alpha-mediated vasoconstriction. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Endocrine Society and/or American Thyroid Association. Current endocrine emergency guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

75

Acute Ischemic Priapism

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 28-year-old man with sickle cell disease presents with a painful erection lasting nine hours. There was no sexual stimulation, and the erection has not improved with hydration or walking. Examination demonstrates: • A rigid, very tender penile shaft • A relatively soft glans • No perineal trauma • No bruit or pulsatile flow

Question 1 of 5NPLEX-ICC-371

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-372

What is the most appropriate initial treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-373

Which cavernosal blood-gas result supports ischemic priapism?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-374

What is the next step if aspiration and phenylephrine fail?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-375

Which statement is most appropriate in sickle cell disease?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Acute ischemic priapism associated with sickle cell disease. Key differentials: Nonischemic high-flow priapism, persistent normal erection, medication-induced erection, penile fracture, dorsal-vein thrombosis. Key investigations: Clinical examination, cavernosal blood gas, CBC, reticulocyte count, medication and substance history, toxicology testing when indicated, and Doppler ultrasound when the diagnosis is uncertain. Treatment: Penile block and analgesia, aspiration and irrigation, intracavernosal phenylephrine with cardiovascular monitoring, and surgical shunting when first-line treatment fails. Naturopathic role: No herb, cold pack, exercise routine, or home remedy should delay emergency decompression. Pharmacology safety: Intracavernosal phenylephrine may cause hypertension, reflex bradycardia, tachyarrhythmia, or cardiac ischemia and requires appropriate monitoring. Referral: Immediate urologic emergency referral. Clinical pearl: Ischemic priapism is diagnosed and treated according to duration and clinical findings, not embarrassment or assumed sexual causation. NPLEX trap: Do not send a painful erection lasting more than four hours home with oral medication alone. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Current evidence-based specialty guideline or consensus statement relevant to the diagnosis, stabilization, treatment, monitoring, and referral decisions in this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

76

Metastatic Spinal Cord Compression

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 69-year-old man with metastatic prostate cancer presents with three weeks of worsening thoracic back pain. The pain is severe at night and increases with coughing. During the past 24 hours, he has developed: • Bilateral leg weakness • Difficulty walking • Numbness below the umbilicus • Urinary retention Examination demonstrates: • Thoracic vertebral tenderness • Increased tone in both legs • Brisk knee reflexes • Bilateral extensor plantar responses • A sensory level near T10

Question 1 of 5NPLEX-ICC-376

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-377

What is the most appropriate immediate action?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-378

Which medication should generally be administered promptly?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-379

What definitive treatment may be required?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-380

Which intervention is contraindicated before spinal stability is assessed?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Metastatic thoracic spinal cord compression from prostate cancer. Key differentials: Epidural abscess, vertebral fracture, cauda equina syndrome, transverse myelitis, spinal hematoma, degenerative spinal stenosis. Key investigations: Whole-spine MRI, CBC, electrolytes, calcium, renal and liver function, inflammatory markers, cancer-directed testing, and CT for bony anatomy or when MRI is contraindicated. Treatment: Immediate oncologic coordination, dexamethasone when indicated, spinal precautions, bladder and bowel management, analgesia, surgical decompression and stabilization, and/or radiotherapy. Naturopathic role: No manipulation, traction, vigorous exercise, or invasive physical therapy before stability is established. Later rehabilitation and nutritional support should follow the oncology and spine plan. Pharmacology safety: Corticosteroids can cause hyperglycemia, infection, delirium, gastrointestinal injury, and muscle weakness; monitoring is required. Referral: Immediate oncology, spinal-surgery, and radiotherapy assessment. Clinical pearl: Preserving the ability to walk before treatment is a major predictor of post-treatment mobility. NPLEX trap: Do not attribute new back pain in a patient with cancer to age-related degeneration without screening for neurologic and bladder symptoms. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American Academy of Neurology, American College of Radiology, and/or relevant emergency neurology guidance. Current recommendations relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

77

Organophosphate Poisoning

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 38-year-old agricultural worker collapses after spraying an organophosphate pesticide in an enclosed greenhouse without protective equipment. He is brought in with: • Profuse sweating • Salivation • Lacrimation • Vomiting and diarrhea • Urinary incontinence • Muscle fasciculations • Confusion Vital signs: • BP: 86/48 mmHg • HR: 42/min • RR: 30/min with laboured breathing • SpO₂: 78% Examination demonstrates pinpoint pupils, copious oral and bronchial secretions, wheezing, weakness, and intermittent seizures.

Question 1 of 5NPLEX-ICC-381

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-382

What is the first safety priority for responders?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-383

What is the primary antidote for severe muscarinic manifestations?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-384

What is the role of pralidoxime?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-385

Which finding is not expected to improve directly with atropine?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Severe organophosphate poisoning with respiratory failure and cholinergic crisis. Key differentials: Carbamate poisoning, nerve-agent exposure, opioid overdose, mushroom poisoning, nicotine toxicity, myasthenic crisis. Key investigations: Primarily a clinical diagnosis. ECG, blood gas, glucose, electrolytes, renal and liver function, chest imaging, and cholinesterase activity may support management but must not delay antidotes. Treatment: Responder protection, decontamination, airway suction and ventilation, oxygen, repeated atropine, pralidoxime when appropriate, benzodiazepines for seizures, and intensive monitoring. Naturopathic role: No botanical detoxification or induced vomiting is appropriate. Prevention includes protective equipment, safe pesticide storage, and occupational-health education. Pharmacology safety: Succinylcholine may have prolonged effects because cholinesterase inhibition delays its metabolism. Medication selection for intubation requires toxicology and anesthesia awareness. Referral: Immediate poison-centre and intensive-care treatment. Clinical pearl: Persistent wet lungs and poor oxygenation indicate insufficient atropinization, even if the pupils are dilated. NPLEX trap: Do not stop atropine merely because tachycardia develops while life-threatening bronchial secretions persist. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Goldfrank’s Toxicologic Emergencies, current edition, together with current poison-centre and medical-toxicology guidance relevant to this exposure.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

78

Severe Anorexia Nervosa and Refeeding Risk

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 20-year-old woman with restrictive anorexia nervosa presents with weakness, dizziness, and two episodes of fainting. She reports consuming fewer than 500 calories daily for several weeks. Examination demonstrates: • Height: 165 cm • Weight: 36 kg • BMI: 13.2 kg/m² • BP: 82/48 mmHg • HR: 38/min • Temperature: 35.3°C • Marked muscle wasting • Peripheral edema Laboratory findings: • Potassium: 2.8 mmol/L • Magnesium: low • Phosphate: 0.48 mmol/L • Glucose: 3.1 mmol/L • ECG: sinus bradycardia with prolonged QT interval

Question 1 of 5NPLEX-ICC-386

What is the most appropriate disposition?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-387

What is the greatest danger when nutrition is restarted?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-388

Which nutrient should be provided before or with nutritional rehabilitation?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-389

How should feeding be restarted?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-390

Which naturopathic recommendation is contraindicated?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Severe anorexia nervosa with cardiovascular instability and very high refeeding risk. Key differentials and comorbidities: Depression, obsessive-compulsive disorder, substance use, celiac disease, inflammatory bowel disease, hyperthyroidism, diabetes, malignancy, chronic infection. Key investigations: Serial electrolytes, phosphate, magnesium, glucose, renal and liver function, CBC, ECG, orthostatic vital signs, pregnancy testing when applicable, and bone-health assessment after stabilization. Treatment: Medical stabilization, thiamine, monitored nutritional rehabilitation, electrolyte correction, cardiac monitoring, specialist psychotherapy, family involvement when appropriate, and treatment of psychiatric comorbidity. Naturopathic role: Supportive nutrition may contribute only within the multidisciplinary eating-disorder plan. Avoid weight-loss supplements, laxatives, diuretics, fasting, and moralizing food language. Pharmacology safety: QT-prolonging medications, stimulants, diuretics, and laxatives require careful review. Drug metabolism and protein binding may be altered by severe malnutrition. Referral: Immediate medical admission with eating-disorder, dietetic, psychiatric, and cardiac oversight. Clinical pearl: A person with anorexia nervosa can be medically unstable even while denying symptoms or requesting outpatient care. NPLEX trap: Do not respond to severe malnutrition by prescribing rapid, unmonitored high-calorie feeding. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Current psychiatric emergency and suicide-risk guidance from recognized professional organizations, including the VA/DoD or American Psychiatric Association as applicable.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

79

Acute Pericarditis

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A 32-year-old man presents with sharp central chest pain that began after a viral respiratory illness. The pain: • Is worse when lying flat • Increases with deep inspiration • Improves when sitting forward • Does not reliably occur with exertion Vital signs: • BP: 124/76 mmHg • HR: 104/min • Temperature: 38.0°C A scratchy, triphasic friction rub is heard at the left lower sternal border. ECG demonstrates diffuse concave ST-segment elevation and PR-segment depression without territorial reciprocal changes. Troponin is normal, and echocardiography shows a small pericardial effusion without tamponade.

Question 1 of 5NPLEX-ICC-391

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-392

What is the usual first-line treatment for uncomplicated acute pericarditis?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-393

Why are corticosteroids generally not preferred as first-line treatment?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-394

Which finding would favour hospital admission and investigation for a secondary cause?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-395

Which supplement combination requires caution?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Acute presumed viral or idiopathic pericarditis. Key differentials: Acute coronary syndrome, pulmonary embolism, aortic dissection, pneumonia, pneumothorax, myocarditis, reflux, musculoskeletal chest pain. Key investigations: ECG, troponin, CBC, CRP or ESR, renal function, chest radiography, and echocardiography. Cardiac MRI may help assess myocardial involvement or uncertain inflammation. Treatment: Aspirin or an NSAID, colchicine, gastroprotection, treatment of an identified cause, and restriction of vigorous exercise until clinical and inflammatory resolution. Naturopathic role: Avoid exercise during active inflammation, review bleeding-promoting supplements, and support sleep and recovery. Botanicals should not replace assessment for tamponade, myocarditis, or secondary disease. Pharmacology safety: Colchicine dosing requires adjustment or avoidance in significant renal or hepatic dysfunction and has serious interactions with strong CYP3A4 or P-glycoprotein inhibitors, including certain macrolides. Referral: Emergency referral for hypotension, syncope, dyspnea, large effusion, tamponade signs, major arrhythmia, or suspected myocardial involvement. Clinical pearl: A pericardial friction rub may be transient and absent during a later examination. NPLEX trap: Do not diagnose all diffuse ST elevation as myocardial infarction, but do not exclude ACS without appropriate clinical and biomarker assessment. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
American Heart Association and American College of Cardiology. Current evidence-based cardiovascular emergency and disease-specific clinical practice guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.

80

Acute Mastoiditis With Subperiosteal Abscess

5 questions · Integrated Clinical Case Clusters

GEA: Cross-Blueprint Integrated Clinical ScienceSEA: Integrated Clinical Case Clusters

Integrated clinical case

A four-year-old child presents with five days of fever and worsening right-ear pain despite oral antibiotic treatment for acute otitis media. The parent reports new swelling behind the ear and increasing irritability. Vital signs: • HR: 132/min • Temperature: 39.3°C Examination demonstrates: • Redness, swelling, and marked tenderness over the right mastoid • Forward and downward displacement of the auricle • Purulent otorrhea • A bulging tympanic membrane • A fluctuant postauricular swelling The child complains of headache but has no focal neurologic deficit.

Question 1 of 5NPLEX-ICC-396

What is the most likely diagnosis?

Answer, integrated rationale, and clinical-safety review

References

Question 2 of 5NPLEX-ICC-397

What is the most appropriate management?

Answer, integrated rationale, and clinical-safety review

References

Question 3 of 5NPLEX-ICC-398

Which imaging study is appropriate when an abscess or intracranial complication is suspected?

Answer, integrated rationale, and clinical-safety review

References

Question 4 of 5NPLEX-ICC-399

When is mastoidectomy particularly likely to be required?

Answer, integrated rationale, and clinical-safety review

References

Question 5 of 5NPLEX-ICC-400

Which naturopathic intervention is contraindicated?

Next case

Answer, integrated rationale, and clinical-safety review

References

Open integrated case review, evidence note, safety guidance, or NPLEX trap

Diagnosis: Acute coalescent mastoiditis complicated by a postauricular subperiosteal abscess. Key differentials: Severe otitis externa, infected lymph node, cellulitis, trauma, parotitis, cholesteatoma, malignancy. Key investigations: Otoscopic examination, CBC, inflammatory markers, blood cultures when systemically ill, drainage cultures, contrast CT, and MRI when intracranial complications are suspected. Treatment: Intravenous broad-spectrum antibiotics, myringotomy or tympanostomy drainage, mastoidectomy when indicated, and treatment of intracranial or venous complications. Naturopathic role: None during invasive infection. Following recovery, routine vaccination, avoidance of smoke exposure, and timely assessment of recurrent ear infections may be discussed. Pharmacology safety: Antibiotic choice should account for prior antibiotic exposure, local resistance, allergy, and potential pathogens. Topical ototoxic medications should not be used when tympanic integrity is uncertain unless specifically selected by an ear specialist. Referral: Immediate pediatric hospital and ENT assessment. Clinical pearl: Postauricular swelling that pushes the auricle outward is a major warning sign for mastoid disease. NPLEX trap: Do not manage mastoid tenderness and auricular displacement as uncomplicated otitis media. Evidence and scope note This pretest cluster integrates diagnosis, investigation, emergency stabilization, medication safety, complementary-care boundaries, monitoring, and referral. Complementary interventions must not delay or replace indicated emergency treatment, diagnostic testing, medications, procedures, or specialist care.

Reference framework

NABNE. NPLEX Part II Clinical Science Examinations: Blueprint and Study Guide. August 2026 edition.
Harrison’s Principles of Internal Medicine. Current edition.
Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. Current edition.
Canadian Paediatric Society and/or American Academy of Pediatrics. Current pediatric guidance relevant to this case.
National Center for Complementary and Integrative Health. Current evidence and safety information for complementary health approaches relevant to this case.