What is the first step for personnel who have been highly exposed during fire operations?

The initial action for personnel who have been highly exposed during fire operations should be decontamination. This step is crucial because it aims to remove contaminants that could pose a health risk. Exposure to hazardous materials can occur at various points during fire operations, and immediate decontamination helps prevent further absorption of harmful substances into the skin or respiratory system. It also assists in minimizing the risk of long-term health effects that may arise from such exposures.

Following decontamination, personnel can then assess their need for medical evaluation and rest. However, prioritizing the removal of contaminants ensures that they are taking proactive steps toward safeguarding their health before any other actions are taken.