The nurse is teaching a community group about nerve agents. The nurse evaluates that the teaching has been effective when the participants state. "We:

A. Can use bactericidal soap and hot water at home to decontaminate ourselves. Bactericidal soap is designed for microbial pathogens, not chemical organophosphates. Hot water can cause vasodilation, which potentially increases the rate of percutaneous absorption of the nerve agent into the bloodstream. Decontamination requires large volumes of cool water and mild soap or specialized reactive skin decontaminant lotions. B. Should stay indoors with the doors and windows closed until it is all clear. While "shelter-in-place" is a basic defensive posture, it is not the most effective long-term strategy for highly volatile nerve agents. Without specialized filtration, chemical vapors can eventually permeate residential structures and reach toxic concentrations. Effective teaching emphasizes that professional decontamination and evacuation are necessary for survival in contaminated zones. C. Should not drink tap water for a while. Nerve agents are primarily threats through inhalation or direct dermal contact rather than municipal water ingestion. While water sources can be contaminated, this statement does not demonstrate a comprehensive understanding of the primary routes of exposure. The participants must prioritize immediate physical protection and decontamination over secondary environmental concerns like water supply. D. Can be poisoned by breathing in nerve agents or through the skin. Nerve agents like sarin or VX are highly toxic organophosphates that enter the body via the respiratory tract or integumentary system. These chemicals inhibit acetylcholinesterase, leading to a cholinergic crisis characterized by muscle paralysis and respiratory failure. Recognizing these multiple routes of entry is critical for implementing effective personal protective measures.