What action should lifeguards take upon hearing rapid whistle blasts?

When lifeguards hear rapid whistle blasts, the appropriate action is to exit the water. This signaling indicates a potentially serious emergency situation, prompting lifeguards to prioritize their safety and the safety of patrons. By getting out of the water, lifeguards can assess the situation more effectively, control the environment, and remain vigilant while not being directly involved in the immediate rescue or emergency scenario.

Remaining in the water during this alert could lead to confusion or distract from the lifeguard's ability to serve effectively in a higher-stakes atmosphere. Exiting the water ensures that lifeguards are ready to assist in whatever capacity is necessary once the full nature of the emergency is understood.

In this context, while getting the attention of a supervisor, indicating a major emergency, or watching their area are important responsibilities for a lifeguard, the immediate step in response to rapid whistle blasts is to make sure they are out of the water. This response allows for a clear view of the situation, thereby enhancing their ability to act appropriately.