Additional fluid requirement in a neonate who is placed under phototherapy for prevention & severity of jaund… - AIIMS Delhi NO - 2017

AIIMS Delhi NO - 2017

Child Health Nursing (Pediatrics)

Easy

Appeared in: AIIMS Delhi NO - 2017

Explanation

Phototherapy increases insensible water loss (IWL) through the skin and respiratory tract, leading to a higher risk of dehydration.
The light energy from phototherapy can also cause increased frequency of loose stools, which further contributes to fluid loss.
To compensate for these losses and maintain adequate hydration, it is standard practice to increase the neonate's daily fluid intake.
A supplemental amount of 10-20 ml/kg/day is the generally accepted range to prevent dehydration without causing fluid overload.

Option A: This range (20-40 ml/kg) represents a 25-50% increase in fluids, which is typically higher than needed for standard phototherapy and could lead to fluid overload.
Option B: This range (60-80 ml/kg) is the typical starting total daily maintenance fluid for a term neonate on day 1 of life, not the additional fluid required for phototherapy.
Option D: This is incorrect because phototherapy is well-documented to increase insensible water loss. Not providing additional fluids puts the neonate at significant risk for dehydration, electrolyte imbalance, and potential complications.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Fluid management in neonatal phototherapy as background academic context rather than a clinical decision trigger.
Accurate fluid management is critical in neonates under phototherapy to prevent dehydration, which can exacerbate jaundice and lead to electrolyte disturbances.
Nurses must meticulously monitor the infant's hydration status by tracking daily weights, urine output (at least 1-3 ml/kg/hr), and assessing for signs of dehydration like sunken fontanelles or dry mucous membranes.
What if? If the neonate was a very low birth weight (VLBW) preterm infant, their baseline fluid needs and insensible water losses are already much higher. The additional fluid for phototherapy might need to be calculated more cautiously, often starting at 10 ml/kg and adjusted based on frequent monitoring of electrolytes and weight, as they are more susceptible to both dehydration and fluid overload.

How to Approach the Question

First, identify the key elements of the question: 'neonate', 'phototherapy', and 'additional fluid requirement'.
Recall the primary physiological effect of phototherapy on a neonate's fluid balance. The key concept is increased insensible water loss (IWL).
Recognize that increased IWL necessitates fluid supplementation to prevent dehydration.
Evaluate the options to find the standard recommended additional fluid amount. Eliminate options that represent total daily fluids (60-80 ml/kg) or are clearly incorrect (no additional fluid).
Select the option that represents a modest, standard increase to compensate for IWL, which is 10-20 ml/kg/day.

Concept Tested & Keywords

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E6 Ghai Essential Pediatrics(pp 26-904 of 913) p. 149-151

E6 Text Book Of Pediatric Nursing 3rd Panchali Pal — Part 1 (pp 36-238 of 713) p. 194-196