Which safety measure should be taken first for extrication?

The appropriate first safety measure for extrication is to power down the vehicle. This step is crucial because it ensures that all electrical systems are turned off, which minimizes the risk of accidental activation of equipment or systems that could endanger both the rescuers and the individuals inside the vehicle. By powering down, you eliminate the risk of airbag deployment or unintended vehicle movement, creating a safer environment for all involved in the extrication process.

Following this initial step of powering down, rescuers can proceed with other safety measures such as locating gas inflators, stabilizing the vehicle, and scanning for airbags, but these should always occur after ensuring that the electrical systems pose no immediate threat. Prioritizing the power-down not only addresses immediate hazards but also sets the stage for a safer and more effective extrication operation.