# A dialysis client taking cinacalcet has corrected calcium 7.3 mg/dL, hand spasms, and a prolonged QT interval. Which action is best?

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=522081&lang=en  
> language: en  
> subject: Adverse Effects/Contraindications/Interactions  
> category: PPT

## Question

A dialysis client taking cinacalcet has corrected calcium 7.3 mg/dL, hand spasms, and a prolonged QT interval. Which action is best?

## Option

1. Administer cinacalcet with the meal and repeat calcium at the next monthly dialysis review.
2. Hold cinacalcet and urgently obtain hypocalcemia treatment and continuous rhythm monitoring orders. **✔ Correct answer**
3. Give cinacalcet while reducing calcium intake to prevent secondary hyperparathyroidism.
4. Wait for the next scheduled laboratory panel because QT changes do not alter the medication plan.

**Correct answer: 2**

## Explanation

Symptomatic hypocalcemia below 7.5 mg/dL with QT prolongation requires withholding cinacalcet and urgent treatment and monitoring.

## In-depth explanation

Quick answer
Protect against hypocalcemia-related arrhythmia and tetany.

Why this is correct
Cinacalcet lowers calcium; the label describes tetany, seizures, QT prolongation, and ventricular arrhythmias and directs withholding for severe or persistent symptomatic hypocalcemia.

Easy analogy or mental picture
Think of medication safety as a control panel: identify the dangerous signal, change the correct control, and verify the response.

Memory hook
Cue, action, response, reassessment.

NCLEX decision rule
Choose the action that prevents the most immediate medication-related harm while preserving the continuing indication.

Why the other choices are wrong
Options that delay escalation, ignore a contraindication, or change therapy without authorization do not close the safety loop.References
1DailyMed: CinacalcetHypocalcemia, QT prolongation, ventricular arrhythmia, symptoms, and withholding thresholds

## Clinical scenario

Medication safety review
Verify the indication, current assessment, laboratory trend, timing, interactions, authorized action, and measurable follow-up.

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