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STEMI — DipIMC MCQ

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HardMedical EmergenciesSTEMIDipIMC

A 56-year-old has ongoing ischaemic chest pain and inferior ST elevation. Oxygen saturation is 97% on air, with no aspirin allergy or active bleeding. Which immediate antiplatelet treatment is indicated?

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

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Correct answer: B — Give aspirin 300 mg orally as a loading dose

The best answer is “Give aspirin 300 mg orally as a loading dose”. NICE recommends a 300 mg aspirin loading dose as soon as acute coronary syndrome is suspected unless aspirin is contraindicated. A maintenance dose is not an adequate loading regimen, and troponin confirmation must not delay STEMI care. Choice and timing of an additional P2Y12 inhibitor depend on the reperfusion plan, bleeding risk and receiving pathway, so it is not a universal substitute for aspirin.

Reference: NICE CG95, Recent-onset chest pain: https://www.nice.org.uk/guidance/cg95/chapter/recommendations