How many times baby should pass the urine during phototherapy?

BHU NO-2019

Pediatric Nursing

Medium

Appeared in: BHU NO-2019

Explanation

Phototherapy works by converting bilirubin into water-soluble forms that are excreted in the urine, making adequate urine output essential for the treatment's effectiveness.
The procedure increases insensible water loss, raising the risk of dehydration. Therefore, a higher fluid intake and corresponding urine output are expected.
A target of 7-9 wet diapers per day is a reliable indicator of good hydration in a newborn, aligning with the standard clinical benchmark of 6-8 wet diapers daily.
This frequency confirms that the infant's fluid intake is sufficient to both compensate for the increased losses and facilitate the excretion of bilirubin.

Option B: This range is on the lower side of adequate hydration. The lower end (4 voids) is below the minimum standard of 6 per day and could indicate developing dehydration, which is a risk during phototherapy.
Option C: While indicating good hydration, this frequency is higher than the standard expected range. It is not the target benchmark for routine assessment.
Option D: This indicates oliguria (severely low urine output) and is a sign of significant dehydration, which is a medical emergency in a neonate.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Assessment of hydration status in a neonate undergoing phototherapy as background academic context rather than a clinical decision trigger.
A primary nursing responsibility during phototherapy is meticulous intake and output (I&O) monitoring to prevent dehydration and ensure treatment efficacy.
Nurses must educate parents on the importance of frequent feeding and how to count wet diapers as a key indicator of their baby's hydration status.
What if? If an infant on phototherapy has only 5 wet diapers in 24 hours and the urine appears concentrated (dark yellow), the nurse should notify the physician, as this indicates dehydration. The plan may include increasing feeding frequency or providing supplemental fluids.

How to Approach the Question

First, identify the core clinical procedure in the question: phototherapy.
Recall the primary mechanism and side effects of phototherapy. The key mechanism is making bilirubin water-soluble for excretion, and a major side effect is increased fluid loss (dehydration risk).
Connect the mechanism and risk: To excrete bilirubin and prevent dehydration, the infant needs excellent hydration.
Recall the standard clinical measure for adequate hydration in a newborn: approximately 6-8 wet diapers per day.
Evaluate the given options against this standard. The range of 7-9 times/day is the only option that reflects this goal of good hydration.
Eliminate other options based on clinical reasoning: 1-3 is severe dehydration, 4-6 is insufficient, and 10-12 is higher than the standard expectation.

Concept Tested & Keywords

Concept Tested: Assessment of hydration status in a neonate undergoing phototherapy.
Stem keywords: baby, phototherapy, urine
Lead-in keywords: How many times

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