# Clinical context An adult with B-cell precursor acute lymphoblastic leukemia develops fever, hypotension, hypoxemia, confusion, word-finding difficulty, and tremor 18 hours after a continuous blinatumomab infusion begins, raising concern for concurrent cytokine release syndrome and neurologic toxicity. Review the trend and select the best interpretation and next plan.

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=522595&lang=en  
> language: en  
> subject: Adverse Effects/Contraindications/Interactions  
> category: PPT

## Question

Clinical context
An adult with B-cell precursor acute lymphoblastic leukemia develops fever, hypotension, hypoxemia, confusion, word-finding difficulty, and tremor 18 hours after a continuous blinatumomab infusion begins, raising concern for concurrent cytokine release syndrome and neurologic toxicity.

Review the trend and select the best interpretation and next plan.

| Time | Data |
| --- | --- |
| Recognition | Temperature 39.3 C; BP 82/48 mm Hg; oxygen saturation 89%; confused with naming difficulty and tremor |
| After interruption and authorized treatment | Temperature 37.8 C; BP 104/66 mm Hg; oxygen saturation 95% with low-flow oxygen; follows one-step commands |
| Current reassessment | Afebrile and BP 112/70 mm Hg; persistent word-finding difficulty and worsening hand tremor |

Q1. How should the trend be interpreted?

All medication toxicity has resolved
Systemic findings are improving but neurologic toxicity remains active
Only central-line irritation remains

Q2. Which next plan is appropriate?

Keep blinatumomab interrupted and continue urgent neurologic evaluation and serial assessment
Restart the infusion independently because the fever resolved
Stop neurologic assessments and discharge immediately

## Explanation

Resolution of fever, hypotension, and hypoxemia suggests the systemic inflammatory component is improving, but persistent language dysfunction and worsening tremor show unresolved neurologic toxicity. Blinatumomab must remain interrupted while urgent neurologic management continues.

## In-depth explanation

Quick answer
Do not mistake improving CRS for resolution of persistent neurologic toxicity.

Why this is correct
Systemic and neurologic effects can recover on different timelines. Treatment cannot be restarted solely because blood pressure and temperature improve.

Easy analogy or mental picture
Use a closed medication-safety loop: identify the immune or cytotoxic exposure, connect the new findings, interrupt further harm, stabilize the client, and verify the response over time.

Memory hook
Exposure, immune effect, organ toxicity, infection risk, immediate action, and serial reassessment.

NCLEX decision rule
Choose the action that reduces the most immediate medication-related risk while preserving diagnostic evaluation and authorized treatment.

Why the other choices are wrong
Options that continue the exposure, treat only one symptom, or delay reassessment leave the toxic or infectious process active.References
1DailyMed: BLINCYTO (blinatumomab)Cytokine release syndrome, neurologic toxicity including ICANS, interruption, corticosteroid treatment, and monitoring

## Clinical scenario

Clinical context
An adult with B-cell precursor acute lymphoblastic leukemia develops fever, hypotension, hypoxemia, confusion, word-finding difficulty, and tremor 18 hours after a continuous blinatumomab infusion begins, raising concern for concurrent cytokine release syndrome and neurologic toxicity.

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