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ST-elevation myocardial infarction — USMLE Step 3 MCQ

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ModerateEmergency MedicineST-elevation myocardial infarctionUSMLE Step 3

A 58-year-old man has crushing chest pain for 45 minutes. ECG shows ST elevation in leads II, III, and aVF. The hospital has immediate PCI capability. Which of the following is the most appropriate next step in management?

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

Reveal the answer and explanation

Correct answer: D — Activate the catheterization laboratory for primary PCI

ST-elevation myocardial infarction requires immediate reperfusion, with primary PCI preferred when available promptly.

Reference: ACC/AHA acute coronary syndrome guidance