This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: ECG and Arrhythmia 2, Subject name: Medicine
A 65 year old man on aspirin, statins and beta-blockers for chronic stable angina develops chest pain for past 4 hours. He becomes unconscious, unresponsive while talking to the doctor on duty in the casualty. ECG was done. What is the best step for management of this patient? 
Select and explain. 
A. Non Synchronous DC shock, B. Chest compressions, C. IV amiodarone, D. Synchronous DC shock
A: Non Synchronous DC shock
Answer: A: Non Synchronous DC shock 
Explanation: Monomorphic Ventricular Tachycardia ECG shows HR of 300/min with broad complex tachycardia. Broad complex QRS have same amplitude. In acute setting DC shock 200 J Biphasic should be given. In case of Hypotension, impaired consciousness or pulmonary edema--> Nonsynchronous DC shock should be given.