What is the correct sequence of steps to take during a CBRN incident?

The sequence of steps during a CBRN (Chemical, Biological, Radiological, and Nuclear) incident is critical for ensuring the safety of both responders and victims. Beginning with assessment allows personnel to evaluate the situation, gather information about the nature of the threat, and determine the best course of action. This initial step helps to identify hazards, the number of affected individuals, and if immediate actions are necessary.

Following assessment, the next step is decontamination. This is essential to reduce the risk of further exposure and contamination, especially in cases where a hazardous agent has been identified. Decontamination must be done swiftly and efficiently to minimize harm.

Once individuals are decontaminated, treatment can begin. This involves providing medical care to those injured or exposed, addressing both trauma and the effects of the CBRN agent. Treatment is crucial to prevent further deterioration of patients' conditions.

Finally, evacuation comes into play. After individuals have been assessed, decontaminated, and treated, they can be safely evacuated from the incident area to ensure they receive further care in a secure setting.

This sequence—assess, decontaminate, treat, and then evacuate—aligns with established emergency response protocols, ensuring responder safety and effective patient