A 72-year-old man on the ward has sudden onset central chest pain and collapses. He is unresponsive and pulseless. Monitoring shows ventricular fibrillation. What is the most appropriate next step in management after starting chest compressions?AGive 1 mg Adrenaline immediatelyBDeliver a single unsynchronised shock as soon as possibleCCheck rhythm again after 2 minutes before shockingDGive 300 mg Amiodarone immediately before shockingEIntubate and ventilate before any attempt at defibrillationCheck my answer