Sudden Palpitations in Medicine / Internal Medicine — 58yo Man | Cardiology | SMLE Q#18759
SMLE Question #18759
Medicine / Internal Medicine
Cardiology
Objective: OBJ-IM-CARD-ACLS-001
Last updated: March 2026
A 58-year-old man presents with sudden palpitations, chest discomfort, and lightheadedness for 30 minutes. He is alert, pale, and diaphoretic. ECG shows a regular narrow-complex tachycardia. What is the most appropriate next step in management?
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