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Anaphylaxis — USMLE Step 3 MCQ

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EasyEmergency MedicineAnaphylaxisUSMLE Step 3

A 22-year-old woman develops urticaria, wheezing, throat tightness, and hypotension 10 minutes after eating peanuts. Oxygen saturation is 90% on room air. She has no prior asthma history. Which of the following is the most appropriate next step in management?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: CAdminister intramuscular epinephrine

Anaphylaxis with respiratory compromise and hypotension is treated first with intramuscular epinephrine.

Reference: Current US clinical practice standards and USMLE Step 3 content outline, https://www.usmle.org/exam-resources/step-3-materials