What is the primary purpose of an AED?

The primary purpose of an Automated External Defibrillator (AED) is to analyze a person's heart rhythm and deliver an electric shock, if necessary, to restore a normal heart rhythm in cases of certain types of cardiac arrest, such as ventricular fibrillation or pulseless ventricular tachycardia. The AED automates the process of checking the heart's rhythm and determining whether a shock is warranted, thereby providing critical intervention in emergency situations.

This device is essential because timely defibrillation can significantly increase the chances of survival after a cardiac event. While CPR, ventilation support, and monitoring vital signs are important components of basic life support, they do not specifically define the primary function of an AED, which is focused on analyzing and addressing life-threatening arrhythmias through defibrillation.