What is the first step in responding to a radiation accident?

In responding to a radiation accident, the foremost priority is to secure the area. This step is crucial because it ensures the safety of both responders and potential victims by preventing further exposure to radiation. Securing the area involves establishing a perimeter to keep unauthorized personnel out, which helps to control the situation and limit the spread of contamination.

By effectively securing the area, responders can work safely and begin to assess what further actions are necessary without putting additional lives at risk. This controlled environment facilitates a more organized response by allowing for the accurate identification of hazards and the safe relocation of individuals who may be in danger.