What is the likely order of steps in mass decontamination?

• A. Remove clothing, then rinse with a low-pressure high-volume shower
• B. Begin with a strong scrub with brushes
• C. Use only mouthwash as first step
• D. Pack up and wait for responders

Answer: (A)

In mass decontamination, the priority is to rapidly remove the contaminant and minimize spread. Removing clothing first is the best starting point because it carries a large portion of the contaminant and reduces skin and hair contact once it’s taken off. After clothing removal, a rinse with a low-pressure, high-volume shower is used to flush contaminants away from the body. The low pressure helps prevent forcing contaminants into the skin or creating aerosols, while the high volume ensures a quick, thorough cleanse for many victims. A strong scrub with brushes isn’t ideal initially because it can irritate the skin and may spread contaminants rather than remove them efficiently. Using mouthwash as the first step doesn’t address skin contamination, and packing up to wait for responders delays protection.