What does AED stand for?

The correct answer, which is "Automated External Defibrillator," refers to a portable device used to diagnose and treat life-threatening cardiac arrhythmias through defibrillation. This device is essential in emergency situations where a person is experiencing sudden cardiac arrest, as it provides an electric shock to the heart to restore its normal rhythm.

The term "automated" indicates that the device can analyze a person's heart rhythm and determine whether a shock is necessary, making it user-friendly even for individuals without extensive medical training. The "external" part highlights that the device is applied externally to the chest rather than being implanted in the body.

Understanding the terminology is crucial for first responders and laypersons alike, as recognizing and utilizing an AED can significantly increase the chances of survival for someone experiencing a cardiac event.