Blister Agents are agents that produce blisters.

• A. Nerve Agents
• B. Blister Agents
• C. Blood Agents
• D. Riot Control Agents

Answer: (B)

Blister agents are substances known as vesicants, whose defining effect is causing blisters on skin and mucous membranes after exposure. This blistering results from chemical injury to skin layers, and it can extend to eyes and airways, producing painful lesions. Classic examples include sulfur mustard and lewisite, which produce delayed blisters.

Other agent classes produce different primary effects: nerve agents disrupt nerve signaling by inhibiting acetylcholinesterase, leading to overstimulation of muscles and glands; blood agents interfere with cellular respiration, causing rapid hypoxia; riot control agents cause irritation and incapacitation but aren’t primarily known for forming the characteristic blisters of vesicants. So the statement that blister agents produce blisters correctly identifies vesicants as the agents responsible for blister formation.