What should a lifeguard do first upon noticing a medical emergency?

The first action a lifeguard should take upon noticing a medical emergency is to assess the situation for safety. This step is crucial as it allows the lifeguard to ensure that both they and the victims are not in immediate danger from factors such as incoming waves, other patrons, or potential hazards in the environment. By evaluating the scene for any risks, the lifeguard can determine the best approach to provide assistance effectively and safely.

Taking this precaution helps prevent further injury to oneself or others. Once the safety of the environment has been established, the lifeguard can then proceed with the appropriate emergency response, which may include entering the water if necessary or alerting others for help.