What does AED stand for?

The term AED stands for Automated External Defibrillator. This device is designed to be easy to use, even for people without medical training. It is used in emergencies when someone experiences sudden cardiac arrest, delivering a shock to the heart to restore a normal rhythm. The "automated" aspect refers to the device's ability to assess the heart's rhythm and determine whether a shock is necessary, guiding users through audio and visual prompts for effective use. This accessibility and clarity make it crucial in saving lives during cardiac emergencies, particularly in public spaces where immediate medical help may not be readily available.

The other options described different variations of defibrillators, none of which correctly align with the established terminology used in medical and emergency contexts.