What is the primary function of the AED?

The primary function of the Automated External Defibrillator (AED) is to analyze the heart's rhythm and deliver an electrical shock if necessary to restore a normal heart rhythm. When someone experiences a sudden cardiac arrest, the heart may go into a chaotic rhythm, known as ventricular fibrillation, which does not allow effective pumping of blood. The AED works by quickly assessing the heart's activity and determining whether a shock is needed to correct this life-threatening condition.

If the device detects a shockable rhythm, it will instruct the operator to deliver a shock, which can help reestablish a normal heartbeat. This critical intervention is often a key element in the chain of survival for individuals experiencing cardiac arrest, as prompt use of an AED can significantly increase the chances of survival.

While CPR is an essential skill to provide chest compressions and maintain blood flow during a cardiac event, it does not replace the need for a timely defibrillation that the AED provides. Monitoring blood pressure and providing oxygen are also important components of patient care but are not the primary function of an AED. The device is specifically designed to assist in cardiac emergencies by addressing the heart's electrical activity.