Why does an aed need to shock the heart?

The AED can identify a fast or unusual heart rhythm that requires a shock.

The AED is intended to stun VF or VT (ventricular tachycardia), or, in other words, powerless however quick heartbeat. An AED can check a man's heartbeat through screens that are in the defibrillator cushions, so you don't need to be a Prepared master to perceive unpredictable heart rhythms to spare somebody's life utilizing an AED. The AED can perceive a quick or unpredictable heart mood that requires a stun.

answer; (vcpr) veterinary client patient relationship;

the right answer is: time