Final answer:
A lifeguard should stop CPR if there are signs of life, a more qualified responder arrives, or the environment becomes unsafe.
Step-by-step explanation:
A lifeguard may need to stop CPR for three primary reasons. Firstly, the lifeguard would stop if they noticed signs of life, such as breathing or movement. It's critical to cease compressions to avoid causing harm if the victim is recovering. Secondly, if the lifeguard becomes exhausted or is replaced by someone with more advanced training, such as an EMT, they should stop to allow the new responder to take over.
Finally, the lifeguard must stop CPR if the scene becomes unsafe for any reason, such as a fire, chemical spill, or violence, prioritizing their own safety. If the person becomes conscious and shows signs of normal breathing and circulation, CPR may no longer be necessary. If the person is moved to a safer location where CPR can be performed more effectively, the lifeguard may choose to pause CPR. If the lifeguard determines that their own safety is at risk due to hazardous conditions or external threats, they may need to stop CPR temporarily