Which of the following cardiac rhythms is ‘shockable’ (unsynchronised DC shock)?

b. Ventricular fibrillation is uncoordinated ventricular activity which can be corrected by unsynchronised DC shock. Pulseless ventricular tachycardia can also be managed by unsynchronised DC shock. Atrial fibrillation, provided it is new in origin, can be managed by electrical current but this requires synchronised current. Asystole and pulseless electrical activity do not benefit from treatment with electrical current.