Final answer:
A defibrillator is used to correct abnormal heart rhythm in a cardiac emergency. When opioid overdose is suspected, it is recommended to request an AED and naloxone at the same time.
Step-by-step explanation:
In a cardiac emergency, a portable electronic device known as an automated external defibrillator (AED) can be a lifesaver. A defibrillator delivers a large charge in a short burst, or a shock, to a person's heart to correct abnormal heart rhythm. When opioid overdose is suspected, it is recommended to request an AED and naloxone at the same time, regardless of whether the person is in respiratory or cardiac arrest.