A patient with bladder carcinoma is receiving intravesical therapy with mitomycin. What instruction should the nurse give to the patient regarding bladder management?

Appeared in: NORCET 9 Mains - 2025

Explanation

Intravesical therapy with mitomycin, a cytotoxic agent, requires the drug to be in direct contact with the bladder's inner lining to be effective against cancer cells.
This necessary contact period is called 'dwell time,' and the standard duration is 1 to 2 hours.
The most critical instruction for the patient is to hold their urine for this duration to ensure the treatment's efficacy.

Option A: Frequent catheterization is not performed by the patient. A single catheterization is done by the nurse to instill the drug. Repeated catheterization would increase the risk of infection and trauma.
Option B: While fluid restriction is advised for about 4 hours before the procedure to prevent drug dilution, it is not the primary instruction during the therapy's dwell time. The key action is retaining the drug.
Option D: Voiding immediately after instillation would expel the medication before it has time to work, making the treatment completely ineffective. Drinking plenty of water is advised after the 1-2 hour dwell time is complete.

Clinical Relevance

Nursing practice connection: Use the key finding related to Patient education for intravesical chemotherapy to guide bedside assessment, documentation, and the next nursing action.
Patient safety is paramount. Nurses must educate patients on handling their urine for up to 6 hours post-treatment, as it contains cytotoxic agents. This includes sitting to void (to prevent splashing), flushing the toilet twice, and washing hands and perineal area thoroughly.
Patient adherence to the dwell time is critical for the success of the therapy. Inadequate retention time can lead to treatment failure and cancer recurrence.
What if? If the patient experiences severe bladder spasms and cannot retain the drug for the full duration, the nurse should instruct them to void but to report the early voiding. The healthcare provider should be notified as this may affect the treatment plan, and antispasmodic medication might be considered for future instillations.

How to Approach the Question

First, identify the core procedure in the question: intravesical therapy with mitomycin for bladder cancer.
Next, recall the purpose of this therapy. It's a topical treatment, meaning the drug must directly touch the target tissue (the bladder lining).
From this purpose, deduce the necessary condition for the therapy to work: the drug must remain in the bladder for a significant amount of time.
Evaluate each option based on this deduction. 'Stopping urination for 1-2 hours' directly supports this goal.
Eliminate the other options. 'Voiding immediately' is the opposite of the goal. 'Frequent catheterization' is an incorrect procedure. 'Avoiding fluids' is a preparatory step, not the main action during therapy.

Concept Tested & Keywords

Concept Tested: Patient education for intravesical chemotherapy.
Stem keywords: bladder carcinoma, intravesical therapy, mitomycin, nursing instruction
Lead-in keywords: What instruction

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