What does the acronym 'AED' represent?

The acronym 'AED' stands for Automated External Defibrillator. This essential device is designed to assist in the treatment of sudden cardiac arrest by delivering an electric shock to help re-establish an effective heart rhythm. AEDs are user-friendly and equipped with clear voice prompts and visual indicators to guide users, even those without medical training, in administering potentially life-saving defibrillation.

Given its role in emergency medical situations, it's critical for lifeguards and other first responders to be familiar with AEDs. They are commonly found in public places and are an integral part of emergency response strategies. Understanding how to operate an AED can significantly increase the chances of survival for a person experiencing cardiac arrest. The other options do not accurately describe the device, which is specifically focused on external defibrillation to restore heart function.