What is the primary purpose of personal flotation devices (PFDs) in swiftwater rescue?

The primary purpose of personal flotation devices (PFDs) in swiftwater rescue is to provide buoyancy and prevent drowning for both rescuers and victims. PFDs are designed to keep individuals afloat in water, significantly increasing safety during rescue operations. In swiftwater situations, where currents can be strong and unpredictable, the use of a PFD is crucial for maintaining stability and allowing rescuers to operate effectively in potentially hazardous conditions.

While signaling for help, enhancing visibility, and protection against hypothermia are important considerations during a rescue, they are secondary functions of a PFD. The main focus is on the flotation aspect; by ensuring that rescuers and individuals being rescued have adequate buoyancy, PFDs play a vital role in reducing the risk of drowning, thus enhancing overall safety in swiftwater environments.