No Significant Past Medical in Medicine / Internal Medicine — 24yo Man | Cardiology | SMLE Q#327
SMLE Question #327
Medicine / Internal Medicine
Cardiology
Last updated: February 2026
A 24-year-old man with no significant past medical history reports brief episodes of palpitations lasting 10–15 minutes, occurring intermittently for 6 months. He denies chest pain, syncope, dyspnoea, or exertional symptoms. Physical examination is normal. A resting 12-lead ECG obtained between episodes is normal. What is the most appropriate next diagnostic test to further evaluate his palpitations?
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