This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Medicine
[{'content': 'Desynchronised defibrillation is used to - \nSelect and explain. \nA. Atrial fibrillation, B. Atrial flutter, C. SVT, D. Ventricular fibrillation', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Desynchronised defbrilation is used for cardiac arrest caused by ventricular fibrillation.The precise timing is not impoant.the energy of the first and second shock should be 150 joules and 200 joules respectively. Ref Harrison 20th edition pg 1554', 'role': 'assistant'}]