Following a chemical explosion, a client presents to the Emergency Department with muscle twitching, loss of bowel and bladder control, and confusion. The nurse recognizes that the client has been in contact with what nerve agent?
1. Ethosuximide (Zarontin)
2. Atropine (Atropine)
3. Ritodrine (Yutopar)
4. Pridostigmine (Mestinon)
Correct Answer: 2
Rationale 1: Ethosuximide (Zarontin) is an anticonvulsant.
Rationale 2: Nerve agents are chemicals that inhibit acetylcholinesterase in the synaptic space and can cause toxic parasympathomimetic effects. Atropine or related anticholinergic medications block the attachment of acetylcholine to receptor sites, causing symptoms of the fight-or-flight response, preventing overstimulation caused by harmful nerve agents.
Rationale 3: Ritodrine (Yutopar) is a sympathomimetic commonly used to slow uterine contractions.
Rationale 4: Pridostigmine (Mestinon) is a parasympathomimetic commonly used for myasthenia gravis.
Global Rationale: Nerve agents are chemicals that inhibit acetylcholinesterase in the synaptic space and can cause toxic parasympathomimetic effects. Atropine or related anticholinergic medications block the attachment of acetylcholine to receptor sites, causing symptoms of the fight-or-flight response, preventing overstimulation caused by harmful nerve agents. Ethosuximide (Zarontin) is an anticonvulsant. Ritodrine (Yutopar) is a sympathomimetic commonly used to slow uterine contractions. Pridostigmine (Mestinon) is a parasympathomimetic commonly used for myasthenia gravis.
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