# Stage 5 — Take action. After recovery, which teaching points should the nurse include to reduce recurrent lithium toxicity? Select all that apply.

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=568862&lang=en  
> language: en  
> subject: Health Promotion and Maintenance  
> category: HPM

## Question

Stage 5 — Take action. After recovery, which teaching points should the nurse include to reduce recurrent lithium toxicity? Select all that apply.

1

Maintain a consistent prescribed intake of fluid and dietary salt rather than making abrupt changes

2

Contact the prescriber promptly for prolonged vomiting, diarrhea, fever, or heavy sweating

3

Ask the prescriber or pharmacist before using NSAIDs, diuretics, or other new medications

4

Keep scheduled lithium, kidney, thyroid, and electrolyte monitoring appointments

5

Double the next lithium dose after a missed dose to restore the prescribed serum concentration

6

Stop scheduled lithium, kidney, thyroid, and electrolyte monitoring once mood symptoms are controlled

## Explanation

Stable fluid and sodium intake, sick-day contact, interaction screening, and ongoing laboratory surveillance reduce recurrence. Doubling doses and stopping monitoring are unsafe because lithium has a narrow therapeutic range and depends on renal and electrolyte status.

## In-depth explanation

Quick answer
Keep water and salt consistent, use a sick-day plan, screen new medicines, and continue scheduled laboratory checks.

Why this is correct
Lithium concentration changes when volume, sodium balance, renal function, or interacting medications change. Prevention depends on recognizing those changes early.

Easy analogy or mental picture
Lithium stays safest on a level road: steady salt, steady fluid, and regular checkpoints.

Memory hook
Stable salt, stable fluid, screened drugs, scheduled labs.

NCLEX decision rule
Teach the trigger-action pair: illness or a new medicine means contact and monitoring, not independent dose adjustment.

Why the other choices are wrong
Double dosing can cause toxicity, and symptom control does not remove the need to monitor a narrow-therapeutic-index drug.

References
1Lithium Carbonate Capsules Prescribing InformationLithium toxicity manifestations, dehydration risk, renal impairment, monitoring, and patient counseling
2Lithium and Lithium Carbonate Full Prescribing InformationDiuretic, NSAID, sodium, hydration, renal clearance, and serum monitoring interactions

## Clinical scenario

Case update
Neurologic and renal findings are improving. The nurse begins medication-safety teaching with the client and family.

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