skip to main content

Adult VF cardiac arrest — DipIMC MCQ

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

ModerateResuscitationAdult VF cardiac arrestDipIMC

A 62-year-old man collapses at a sports club. Bystander CPR is in progress and an AED has delivered two shocks for VF; after the third shock by the ambulance team, high-quality CPR continues and IV access has been obtained. What is the most appropriate immediate action?

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

Reveal the answer and explanation

Correct answer: B — Adrenaline 1 mg IV and amiodarone 300 mg IV

After the third shock in adult VF/pulseless VT, adrenaline 1 mg and amiodarone 300 mg are given while CPR continues. Amiodarone 150 mg is the subsequent dose after further shocks, not the initial antiarrhythmic dose. Atropine has no role in cardiac arrest algorithms.

Reference: Resuscitation Council UK Adult ALS 2025