# The nurse reviews follow-up data for clients taking carbamazepine. Which findings require immediate follow-up? Highlight the findings associated with serious medication toxicity.

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> url: https://mymerci.kr/pages/nclex_q.php?qn_id=495941&lang=en  
> language: en  
> subject: Medication Administration  
> category: PPT

## Question

The nurse reviews follow-up data for clients taking carbamazepine. Which findings require immediate follow-up? Highlight the findings associated with serious medication toxicity.

| Review area | Recorded finding |
| --- | --- |
| Blood count | WBC 1,900/mm3 with fever and painful mouth sores |
| Medication use | Dose taken with food as directed and recorded without new symptoms |
| Neurologic status | Brief mild drowsiness after the first dose resolves before activity |
| Electrolytes | Sodium 122 mEq/L with new confusion and unsteady walking |
| Follow-up plan | Routine laboratory appointment and monitoring schedule confirmed for next week |
| Skin | Dry skin on both shins remains unchanged without rash or mucosal injury |
| Skin and mouth | Blistering rash with painful oral mucosal lesions |
| Blood count | Platelets 58,000/mm3 with new petechiae on both legs |
| Medication storage | Tablets remain sealed in the labeled container at the recommended room temperature |

## Explanation

Severe leukopenia with infection signs, symptomatic hyponatremia, blistering mucosal rash, and marked thrombocytopenia require immediate follow-up. These findings can signal life-threatening carbamazepine toxicity rather than expected early effects.

## In-depth explanation

Quick answer
Highlight WBC 1,900/mm3 with fever and mouth sores, sodium 122 mEq/L with confusion, a blistering mucosal rash, and platelets 58,000/mm3 with petechiae. Each finding signals a potentially serious carbamazepine reaction.

Why this is correct
Carbamazepine can rarely suppress bone marrow, producing severe leukopenia or thrombocytopenia and leaving the client vulnerable to infection or bleeding. It can also cause symptomatic hyponatremia and serious skin reactions such as Stevens-Johnson syndrome. These findings require holding the dose and urgent prescriber evaluation under the treatment plan.[2]

Easy analogy or mental picture
Picture four safety panels: infection defense, bleeding control, sodium balance, and the skin barrier. Carbamazepine can damage any panel, so fever, petechiae, confusion, or blistering mucosa are alarm signals. The picture groups risks but does not replace laboratory trends.

Memory hook
Fever, bleeding, confusion, or blisters mean urgent review.

NCLEX decision rule
When a client taking carbamazepine develops infection signs, abnormal bleeding, symptomatic low sodium, or a blistering rash, think serious toxicity; check the latest dose, laboratory values, skin and mucosa, and prescriber instructions before more medication.

Why the other choices are wrong
Mild early drowsiness, taking a dose with food, keeping routine appointments, simple dry skin, and proper storage do not show the same dangerous pattern. They may need teaching or monitoring but not the urgent response triggered by systemic findings.References

- [1]NCSBN: 2026 NCLEX-RN Test PlanNational Council of State Boards of Nursing

- [2]DailyMed: Carbamazepine Tablets Prescribing InformationU.S. National Library of Medicine

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