Under what condition is it acceptable to stop CPR?

Stopping CPR is acceptable when emergency medical services (EMS) arrive and take over. This transition is critical because EMS personnel are trained to provide advanced care and have the equipment necessary to continue life-saving interventions. When EMS arrives, it signals that a higher level of medical assistance is now available, and they can take over the ongoing efforts to stabilize the victim.

While the other choices may seem reasonable at a glance, they do not align with the established protocols for CPR. For instance, the idea of stopping CPR after a specific duration, like 5 minutes, is arbitrary. Continuous CPR should be maintained until professional help arrives or the victim shows clear signs of recovery, which includes becoming responsive. Fatigue of the rescuer is also not a valid reason to stop without ensuring that another qualified person is ready to take over. It's crucial to maintain CPR until there is a definitive change in the victim's condition or professional help takes over.