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Exercise-associated collapse — MRCEM SBA MCQ

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EasyMedical Conditions in SportExercise-associated collapseMRCEM SBA

A 28-year-old marathon runner collapses immediately after finishing on a cool day. He is alert, normothermic, and improves when laid supine with legs elevated. What is the most likely diagnosis?

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Correct answer: B — Exercise-associated postural collapse

Collapse after finishing with normal mentation and temperature is commonly due to transient postural hypotension from loss of muscle pump. The key is to exclude serious causes such as heat stroke, hyponatraemia, cardiac disease and hypoglycaemia. Supine positioning and assessment are usually effective.

Reference: ACSM/IOC endurance event guidance