What does the acronym "AED" stand for?

The acronym "AED" stands for Automated External Defibrillator. This device is critical in emergency situations where someone is experiencing sudden cardiac arrest. An AED is designed to analyze the heart's rhythm and, if necessary, deliver an electric shock to help reestablish a normal heart rhythm.

The use of external in the name indicates that it is used outside of a hospital setting, making it accessible for laypersons and first responders to use in a variety of environments. The automated aspect means that the device can assess the patient's heart rhythm and prompt the user with audio and visual instructions, which is essential for effective and timely intervention.

The other options do not accurately reflect the functions or characteristics of an AED. Understanding the role and operation of an AED can significantly impact survival rates in emergency cardiac situations, highlighting its importance in public health and emergency medical training.