Acute coronary syndrome — DipIMC MCQ

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EasyMedical EmergenciesAcute coronary syndromeDipIMC

A man has crushing central chest pain and inferior ST elevation at home. He has no aspirin allergy and no active bleeding. What is the most appropriate drug/dose?

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Correct answer: E — Aspirin 300 mg chewed

Option E is correct because Suspected STEMI should receive early aspirin unless contraindicated while reperfusion planning proceeds. Option D is less appropriate because that dose is an ALS cardiac-arrest dose and is unsafe for this non-arrest indication; option A is less appropriate because aspirin is useful in ACS but inappropriate for this presentation. Option C is less appropriate because untitrated opioid dosing can cause avoidable hypotension or respiratory depression; option B is less appropriate because steroids have delayed onset and should not replace the immediate treatment. Clinical pearl: in DipIMC-style questions, the best answer is the intervention that changes outcome earliest in the pre-hospital phase.

Reference: JRCALC Guidelines