What basic steps should be taken if a casualty is suspected of CBRN exposure?

• A. Remove from hazard
• B. Decontaminate with water if possible
• C. Limit exposure
• D. All of the above

Answer: (D)

In suspected CBRN exposure, the priority is to reduce dose and prevent spread while beginning care. Removing the casualty from the hazard is essential to stop ongoing exposure and prevent further absorption. If possible, decontamination with water should be performed to wash away contaminants on skin and clothing, reducing the risk of secondary contamination and further absorption. Limiting exposure is also crucial—shorten the time spent near the hazard, maintain distance, and use shielding as available to protect others and reduce the dose received.

These steps together cover stopping ongoing exposure, removing contamination, and protecting others, which is why all of the above is the best approach. Even when one step isn’t fully possible, applying the others still helps minimize risk and enables safer, more effective care.