AED Pad

Defibrillationis a treatment for life-threateningcardiac dysrhythmias, specificallyventricular fibrillation(VF) andnon-perfusing ventricular tachycardia(VT). A defibrillator delivers a dose ofelectric current(often called a countershock) to theheart. The electrical shock does not have to be timed with the heart's intrinsic cardiac cycle. Thisdepolarizesa large amount of theheart muscle, ending the dysrhythmia. Subsequently, the body'snatural pacemakerin thesinoatrial nodeof the heart is able to re-establishnormal sinus rhythm.