Unstable ventricular tachycardia — RCPSC EM MCQ
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Correct answer: B — Perform synchronized cardioversion with analgesia or sedation if circulation permits
Explanation lettering: E = shown as A · D = shown as C · A = shown as D · C = shown as E
B is correct for unstable monomorphic wide-complex tachycardia. C and D are options for selected stable presentations but do not treat shock. E is used for pulseless VT/VF or when synchronization cannot be achieved in a crashing rhythm. A does not address electrical instability.
Reference: Emergency Care BC, Diagnosis of STEMI Equivalents: https://emergencycarebc.ca/clinical_resource/clinical-summary/diagnosis-of-stemi-equivalents/