What is the correct sequence for using an AED on a collapsed athlete?

• A. Check responsiveness, shout for help, begin CPR, then apply AED as soon as available.
• B. Ensure scene safety, check responsiveness, shout for help, begin CPR with chest compressions, apply AED as soon as available, follow audio prompts.
• C. Apply AED before initiating CPR.
• D. Wait for medical staff to arrive and not use AED.

Answer: (B)

When someone collapses, the priority is to keep blood flowing to vital organs and restore a normal heart rhythm as quickly as possible. Start by making sure the scene is safe for you and the person. Then quickly assess whether they are responsive. If there’s no response, shout for help to summon assistance and bring an AED to the scene. Begin high-quality CPR immediately with chest compressions to maintain circulation while help is on the way.

As soon as the AED is available, turn it on and apply the pads, then follow its audio prompts. The device will analyze the heart rhythm and tell you whether a shock is advised. Stand clear during analysis and when delivering a shock, then resume CPR right away after the shock (or after the device directs you to continue) and continue until professional help arrives or the person shows signs of recovery. Waiting for medical staff or delaying CPR would reduce the chances of survival, so the sequence prioritizes immediate CPR and defibrillation as soon as the AED is accessible.