Comprehensive and Detailed Explanation (Based on NREMT standards):
Nerve agents are highly toxic organophosphate chemicals that inhibit acetylcholinesterase, leading to excess acetylcholine accumulation and life-threatening cholinergic effects. NREMT hazardous materials education highlights recognition of these agents due to their rapid lethality.
Option C (Tabun) and D (Sarin) are correct. Both are internationally recognized nerve agents historically used in chemical warfare and terrorist attacks.
Option A (Naloxone) is an opioid antagonist, not a nerve agent.
Option B (Metoprolol) is a beta-blocker medication.
Option E (Atropine) is not a nerve agent; it is an antidote used to treat nerve agent poisoning.
NREMT emphasizes scene safety, recognition of toxidromes, and early antidote administration for nerve agent exposure.
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