1 Hour Of Retrosternal in Medicine / Internal Medicine — 55yo Man | Cardiology | SMLE Q#1128
SMLE Question #1128
Medicine / Internal Medicine
Cardiology
Last updated: February 2026
A 55-year-old man presents with 1 hour of retrosternal chest pain radiating to the left arm with diaphoresis. ECG shows ST-segment depression in leads II, III, and aVF. He is a current smoker (20 pack-years) and has no known history of hypertension, diabetes, or dyslipidaemia and takes no regular medications. Which of the following is the most important modifiable risk factor for myocardial infarction in this patient?
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