What is the primary function of an AED?

The primary function of an Automated External Defibrillator (AED) is to analyze the heart's rhythm and deliver an electric shock when necessary to restore a normal heart rhythm. AEDs are designed for use in emergencies, particularly during cardiac arrest situations when a person's heart may be in a state of ventricular fibrillation or pulseless ventricular tachycardia. The device automatically assesses the heart's electrical activity and determines whether a shock is indicated.

This function is crucial because timely defibrillation can significantly improve the chances of survival following a cardiac arrest. The AED is equipped with voice prompts and visual instructions to guide the user through the process, making it accessible for those without medical training. The effectiveness of defibrillation diminishes the longer a person remains in a state of cardiac arrest, which is why the AED’s ability to analyze and act quickly is vital.