If there are any signs of chemical or biological agent poisoning, immediately mask the casualty. If it is not nerve agent poisoning, decontaminate exposed skin and gross contamination (large wet or oily spots) of the clothing or overgarments. If it is nerve agent poisoning, administer the anitdote before decontamination.

See the task Administrator First Aid To A Nerve Agent Casualty (Buddy-Aid), task number 081-831-1031.