What action should be taken if a swimmer appears unresponsive?

In situations where a swimmer appears unresponsive, checking their pulse and breathing is a critical first step. This action helps determine the swimmer's level of consciousness and whether they require immediate medical assistance. Assessing for a pulse and breathing can provide vital information about their condition, allowing you to act quickly and appropriately.

If the swimmer is not breathing or lacks a pulse, this would indicate a need for immediate emergency procedures, such as calling for help and initiating CPR. Acting swiftly can significantly improve the chances of recovery for the person in distress, making it essential to prioritize this assessment over other actions.

Floating next to them, instructing them to swim harder, or waiting for them to call for help does not address the immediacy of the situation, potentially putting the swimmer at greater risk. Therefore, checking for pulse and breathing is the most effective response to ensure the well-being of the swimmer.