What action should a lifeguard take if they suspect a patron is under the influence of substances?

When a lifeguard suspects that a patron may be under the influence of substances, closely monitoring the patron is the most appropriate action to take. This approach allows the lifeguard to assess the situation without escalating any potential conflict. Monitoring ensures that the lifeguard can keep an eye on the individual's behavior and well-being, enabling a timely response if their condition worsens or they pose a risk to themselves or others.

This action aligns with the lifeguard's responsibility to maintain a safe environment for all patrons. By watching the patron carefully, the lifeguard can detect any signs of potential danger, such as erratic behavior, loss of coordination, or other health issues that may arise from substance use.

In contrast, actions such as confronting the patron immediately or advising them to leave the facility might escalate the situation, potentially leading to confrontations or distress. Simply ignoring the behavior overlooks the responsibility of a lifeguard to ensure the safety of all individuals present. Therefore, monitoring the situation closely is the best course of action to ensure safety and make informed decisions based on the observation of the patron's behavior.