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 a shock if necessary. AEDs are used during cardiac emergencies, particularly in cases of sudden cardiac arrest, where the heart may be in a life-threatening rhythm such as ventricular fibrillation or pulseless ventricular tachycardia.

When a rescuer applies the AED pads to the patient's chest, the device assesses the heart rhythm. If an abnormal rhythm that requires defibrillation is detected, the AED prompts the rescuer to deliver an electrical shock, which can help restore a normal rhythm. This prompt intervention can significantly improve the chances of survival in a cardiac arrest situation.

While CPR instructions and vital signs are important aspects of patient care during a cardiac emergency, they are not the primary functions of an AED. The device focuses specifically on assessing heart rhythms and providing defibrillation, making it a crucial tool in emergency medical situations.