A client taking lithium reports vomiting and diarrhea for 2 days. Which instruction should the nurse give?
1Contact the provider because dehydration can increase lithium toxicity risk.✓ Correct answer
2Reduce fluid intake to minimize diarrhea episodes and prevent electrolyte loss.
3Keep taking your usual lithium; vomiting and diarrhea do not alter blood levels.
4Take an extra dose if you vomited within 30 minutes of taking lithium.
Explanation
Fluid and sodium loss from vomiting and diarrhea can increase lithium levels and toxicity risk. The client should contact the provider for guidance and possible level assessment. Doubling the dose or restricting fluids can worsen toxicity.
Clinical Judgment Use the client cues, timing, labs, and safety risks to select the response that best fits Lithium and dehydration.
Memory Tip Match the strongest cue cluster to the safest nursing judgment.
KR vs US NCLEX items reward cue-based priority thinking rather than isolated recall.
Clinical Practice GuideFor Lithium and dehydration, compare the complete cue pattern with the client's current stability, ordered data, and expected nursing scope.
CautionDo not choose an action from one isolated cue when the full scenario changes priority or safety.
Lithium — A mood stabilizer with a narrow therapeutic range.
Toxicity — Harmful effects from excessive drug level or sensitivity.
Dehydration — A fluid deficit that can alter medication concentration and perfusion.