When should an Automated External Defibrillator (AED) be used?

The appropriate time to use an Automated External Defibrillator (AED) is as soon as it is available after calling 911. This is essential because early defibrillation is a critical component of the chain of survival for someone experiencing a cardiac arrest. The AED is designed to quickly analyze the heart's rhythm and determine if a shock is necessary to restore a normal heart rhythm.

Using the AED promptly can significantly increase the chance of survival for the victim, as every minute without defibrillation decreases the chances of survival. It is important to note that if the individual is showing signs of life such as normal breathing, then the use of an AED is not necessary at that moment. The AED should not be delayed by waiting for prolonged CPR to be completed or to try additional breathing techniques, as these actions can divert critical attention from restoring the heart rhythm. Instead, rapid access to the AED, combined with high-quality CPR, is the best course of action in such emergency situations.