Asynchronous cadioversion is given in :
Ans. is 'b' Ventricular fibrillation Electrical cardioversion and defibrillation are the most reliable methods for termination of arrhythmias. These methods depolarize all or at least a large portion of excitable myocardium in a near homogenous fashion, the electrical shock can interrupt reentrant arrhythmias.Energy is delivered synchronously with the QRS complex for all arrhythmias except ventricular flutter and ventricular fibrillation.
AF
Ventricular fibrillation
Atrial flutter
Ventricular tachycarida
Arrhythmias