How to use an AED

If someone has fainted or collapsed and an AED is available:

• Check to see if the person is breathing and has a pulse.
• If you cannot feel a pulse and the person is not breathing, call for emergency help. If you're alone, call 911 or emergency services first to make sure help is on the way. If another person is present, one person can call 911 while the other prepares the AED. If other people can help, one person can begin CPR while the AED is being prepared.
• Turn on the AED. The AED gives step-by-step voice instructions. It tells you how to check for breathing and a pulse. It tells you how and where to place the AED pads on the person's bare chest.
• Stand clear and deliver the shock. When the pads are in place, do not touch the person while the AED measures the person's heartbeat. If the machine thinks a shock is needed, it tells the user to stand back and push a button to deliver the shock. Make sure you or no one else is touching the person. Say "stand clear" loudly, and push the shock button. The AED only delivers a shock when needed.
• Start CPR. Begin CPR after the shock is delivered if CPR is still needed. The AED will also guide users through CPR. The process can be repeated as needed until emergency medical teams take over.