defibrillator and heart on a black background.

aid arrest arrhythmias artificial attack cardiac cardiology cardioverter charge concept danger defibrillate defibrillator device ecg electrical electricity electrodes emergency equipment fibrillation health healthcare heart heartbeat hospital image level life medical medicine pacemaker paddle pair rescue ressucitate resuscitation revival revive rhythms shock shockpads tachyarrythmia tachycardia therapy treatment wire