What should a lifeguard do if they suspect a swimmer has a spinal injury?

When a lifeguard suspects a swimmer has a spinal injury, the priority is to keep the swimmer safe while minimizing any movement that could worsen the injury. Maintaining the swimmer in a face-up position helps prevent further spinal cord damage. It is critical to stabilize the head and neck to prevent any twisting or bending, as this can lead to increased risk of paralysis or further injury.

In this scenario, the lifeguard should also call for emergency assistance promptly. Keeping the swimmer supported and still allows for medical professionals to arrive and take over without risking any potential spinal injury exacerbation. The other options either involve moving the swimmer in a way that could cause further harm or not providing adequate support and stabilization for a spinal injury situation.