Aspirin MI Emergency Dose — MFDS Part 1 MCQ

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EasyPharmacologyAspirin MI Emergency DoseMFDS Part 1

A conscious adult develops symptoms suggestive of an acute myocardial infarction during dental treatment. The patient has no known aspirin allergy, and an ambulance has been called. Which aspirin regimen should the dental team administer while awaiting transfer?

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Correct answer: D — 300 mg dispersible aspirin, chewed

The correct answer is D. In suspected myocardial infarction or acute coronary syndrome, a conscious adult without clear evidence of aspirin allergy should receive a single 300 mg loading dose as soon as possible. UK dental emergency guidance specifies dispersible aspirin chewed to promote rapid availability while an ambulance is awaited. Calling 999 and transfer to hospital must not be delayed. A 75 mg dose is used commonly for long-term antiplatelet therapy, not emergency loading. Doses of 150 mg or 600 mg are not the recommended UK dental emergency dose. Gastro-resistant aspirin should not be selected because its coating delays drug release and therefore rapid antiplatelet action.

Reference: Scottish Dental Clinical Effectiveness Programme Practice Support Manual, Medical Emergencies in the Dental Practice: Cardiac Emergencies, May 2020. https://www.psm.sdcep.org.uk/media/3hlkptix/medical_emergencies_in_the_dental_practice.pdf