What should you do immediately after using an AED that advises giving a shock?

After using an AED that advises giving a shock, performing CPR starting with chest compressions is the appropriate action to take. This is because the shock from the AED is intended to reset the heart's rhythm; however, it does not guarantee that the victim will regain consciousness or normal breathing immediately afterward.

Chest compressions serve as a vital component of CPR as they help to circulate blood to vital organs, particularly the brain and heart, enabling continued oxygen delivery even when the heart is not effectively pumping. Starting with chest compressions right after the shock maximizes the chances of survival by maintaining blood flow until emergency medical services arrive or until the victim shows signs of life.

Other options, such as performing CPR with breaths or waiting for the victim to respond, can lead to delays in critical care. Checking for breathing again at that moment may also waste precious time that could be used to provide life-saving compressions. Immediate action is essential in a cardiac emergency, and beginning CPR with chest compressions ensures that assistance is being provided continuously.