Final answer:
An automated external defibrillator (AED) should be used on a nonbreathing victim who has collapsed suddenly. A defibrillator delivers a large shock of electrical energy to correct abnormal heart rhythm. AEDs are commonly found in many public places and are designed for easy use by non-medical personnel.
Step-by-step explanation:
An automated external defibrillator (AED) should be used on a nonbreathing victim who has collapsed suddenly. A defibrillator delivers a large shock of electrical energy to the person's heart to correct abnormal heart rhythm. AEDs are commonly found in many public places and are designed to be used by lay persons.