What is the first step rescuers should take when assessing a scene?

Ensuring personal safety is the priority for rescuers when assessing a scene. This step is crucial because if the rescuer does not take precautions to protect themselves from potential hazards, they could become another victim, rendering them unable to assist those in need. This practice involves looking for any dangers such as traffic, fire, or unstable surfaces that could pose risks to the rescuer or the victims.

By focusing on personal safety first, the rescuer sets a secure foundation for carrying out further steps, such as checking for responsiveness and activating emergency medical services if necessary. Activating emergency services or administering CPR can only occur effectively and safely if the rescuer is confident that the environment is safe to enter.