skip to main content

Wide-complex tachycardia — RCPSC IM MCQ

Instant feedback + full explanation. One question, done properly.

HardCardiologyWide-complex tachycardiaRCPSC IM

A 64-year-old man with prior myocardial infarction develops palpitations and presyncope. ECG shows regular wide-complex tachycardia at 176/min with AV dissociation. Blood pressure is 88/54 mm Hg and he is diaphoretic. Oxygen is applied and IV access is obtained. What is the most appropriate next step?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: E — Synchronized electrical cardioversion

Regular wide-complex tachycardia with AV dissociation in a patient with structural heart disease is ventricular tachycardia. Hypotension and ischemic symptoms make synchronized cardioversion the immediate next step.

Reference: Advanced cardiovascular life support; CCS ventricular arrhythmia guidance