defibrillator with electrical discharge

accident aid arrhythmias artificial attack cardiac cardiology cardioverter danger death defibrillate defibrillator discharge dying electrical electricity electrodes emergency equipment fibrillation health healthcare heart heartbeat hospital ill life medic medical medicine monitor nursing pacemaker paramedics pulse rescue rescuer ressucitate resuscitation revive rhythms save shocks sick supraventricular tachyarrythmia urgent ventricular