After 4 minutes of CPR on a 9-year-old child, what is your next action when an AED arrives?

When an AED (Automated External Defibrillator) arrives, the priority is to use the device as soon as possible to assess and potentially restore the heart's normal rhythm. This action is crucial because defibrillation improves the chances of survival in cases of cardiac arrest. Following the AED's voice instructions ensures that the responder is taking the right steps for proper use, which typically includes attaching the pads, allowing the AED to analyze the heart rhythm, and delivering a shock if advised.

It's important to understand that immediately using the AED takes precedence over other actions, including continuing CPR without interruption or pausing CPR unnecessarily. While CPR is vital in maintaining blood flow, the use of an AED is an essential part of the chain of survival and provides a potentially life-saving intervention. By following the AED's guidance, the rescuer can effectively integrate the use of this critical tool into the resuscitation effort in a timely manner.