Which step in the primary assessment involves evaluating potential hazards?

In the primary assessment, the step that involves evaluating potential hazards is crucial for ensuring the safety of both the rescuer and the victim. This step, known as "size up the scene," allows the lifeguard to assess the environment for any dangers that could complicate the rescue efforts, such as the presence of strong currents, sharp objects, or other environmental factors that could pose a risk.

By conducting a thorough evaluation of the scene, the lifeguard can determine whether it is safe to proceed with the rescue, ensuring the lifeguard's safety first and foremost. This assessment is an essential step that allows for informed decision-making, enabling the lifeguard to take necessary precautions before engaging with the victim. It enhances the chances of a successful outcome while minimizing risks associated with the rescue situation.