Features of a defibrillation at cardiopulmonary resuscitation

The countershock, to be exact its version - an electric defibrillation is one of the main resuscitation actions at sudden death. It is known that fibrillation of ventricles is the most frequent reason of a cardiac standstill. Proceeding from it, the result of resuscitation often depends on a possibility of the fastest carrying out a defibrillation.