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Ventricular fibrillation arrest — DIPIMC MCQ

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ModerateResuscitationVentricular fibrillation arrestDIPIMCDipIMC

A 60-year-old has a witnessed cardiac arrest. The rhythm is ventricular fibrillation. Two shocks have been delivered and he remains in VF after the third shock.

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

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Correct answer: E — Adrenaline 1 mg IV and amiodarone 300 mg IV after the third shock

Explanation lettering: C = shown as A · E = shown as C · A = shown as E

In a shockable rhythm both adrenaline 1 mg and amiodarone 300 mg are given after the third defibrillation attempt; this is the point at which drugs are first indicated in the VF/pVT algorithm. Giving adrenaline after the first shock (B) is the schedule for non-shockable rhythms, not VF. Atropine (E) has no role in modern ALS. Anchor drug timing in shockable arrest to the third shock.

Reference: Resuscitation Council UK 2025 Adult ALS