I. Introduction In the critical moments following a sudden cardiac arrest (SCA), every second counts. The timely use of an Automated External Defibrillator (AED) can mean the difference between life and death. As such, understanding how to operate an AED is not just a valuable skill; it's a potentially life-saving one. A. Importance of Automated External Defibrillators (AEDs) in Saving Lives Automated External Defibrillators (AEDs) are portable devices designed to deliver an electric shock to the heart in cases of cardiac arrhythmias, such as ventricular fibrillation or pulseless ventricular tachycardia. These arrhythmias can cause the heart to quiver ineffectively, leading to sudden cardiac arrest. SCA is a leading cause of death globally, claiming millions of lives each year. However, studies have shown that when an AED is used within the first few minutes of a cardiac arrest, the survival rate can increase significantly, sometimes doubling or even tripling the chances of survi...