What is the first step a lifeguard should take when performing a rescue?

The first step a lifeguard should take when performing a rescue is to use a whistle to alert others and signal for assistance. This action serves not only to gain the attention of bystanders and colleagues but also to ensure that everyone in the vicinity is aware of the emergency taking place. Using a whistle is a critical communication tool that can help mobilize additional help when needed, as it can instruct others to take specific actions or clear the area.

This step is essential for maintaining safety and organization, allowing the lifeguard to focus on the rescue while informing others of the situation. Once assistance is on the way or the situation is more contained, the lifeguard can proceed with the subsequent steps necessary for a successful rescue.