What is the role of an AED?

The role of an Automated External Defibrillator (AED) is to analyze the heart rhythm and deliver a shock if needed. This device is designed to assist in the event of a sudden cardiac arrest by identifying abnormal heart rhythms, specifically ventricular fibrillation or pulseless ventricular tachycardia. If such rhythms are detected, the AED will automatically advise or administer a defibrillation shock, which can help restore a normal heartbeat.

This function is critical because without prompt defibrillation, the chances of survival significantly decrease. While AEDs can guide users through the resuscitation process, including prompts for CPR, the primary function is to assess and treat life-threatening arrhythmias, making it an essential tool in emergency response for cardiac events.

Understanding this function highlights the importance of swift action during cardiac emergencies, as the ability of an AED to deliver a shock can be the pivotal factor in a person's chance of survival.