The nurse would assess which of the following as early signs of lithium poisoning?
1. Elevated blood pressure, paralysis, and impulsivity
2. Cardiac arrest, seizures, and change in level of consciousness
3. Vomiting, diarrhea, lethargy, and muscle twitching
4. Hallucinations, agitation, and anger
3
Rationale: Vomiting, diarrhea, lethargy, and muscle twitching are early signs of lithium poisoning. Cardiac arrest, seizures, and change in level of consciousness are late and life threatening signs that could be avoided if the early signs are recognized. The combination of hallucinations, agitation, anger, elevated blood pressure, paralysis, and impulsivity are not early signs of lithium toxicity.
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