What is the primary function of an Automated External Defibrillator (AED)?

The primary function of an Automated External Defibrillator (AED) is to analyze heart rhythms and deliver an electric shock when necessary. When a person experiences a sudden cardiac arrest, their heart can enter a state of arrhythmia, where it beats irregularly and cannot effectively pump blood. The AED detects this irregular rhythm and determines whether a shock is needed to restore a normal heart rhythm. Upon determining that a shock is indeed necessary, the device will instruct the user to deliver an electric shock, which can be critical for restoring the heart's natural rhythm and potentially saving the person's life.

Though providing CPR instructions, monitoring swimmer activities, and keeping track of lifeguard schedules are important aspects of lifesaving and management, they are not functions of an AED. The AED's role is focused solely on diagnosing heart rhythm issues and assisting in the management of cardiac emergencies. Understanding this key aspect allows individuals to effectively use an AED in life-threatening situations, ensuring timely and appropriate action is taken.