Question

what is an aed?

Explanation:

An AED stands for Automated External Defibrillator. It is a portable device that automatically diagnoses life - threatening cardiac arrhythmias and can treat them through defibrillation, which delivers an electric shock to the heart to restore normal rhythm.

Answer:

An Automated External Defibrillator, a portable device for diagnosing and treating life - threatening cardiac arrhythmias via defibrillation.