A 6 year old baby is kept NPO before 4 hours of endoscopy procedure. Which of the following fluid would be prescribed for the baby?

Appeared in: NORCET 3 - 2022 (Shift-2)

Explanation

Isolyte-P is a balanced, isotonic crystalloid solution specifically formulated for pediatric maintenance.
It contains 5% dextrose, which helps prevent hypoglycemia and starvation ketosis in a child who is not eating.
Its electrolyte composition (sodium, potassium, chloride) and buffer (acetate) are more physiologic than saline-based solutions, reducing the risk of acid-base disturbances.
For short-term NPO status in children, a balanced solution with dextrose is the recommended standard of care.

Option B: 10% glucose is a hypertonic solution used for correcting hypoglycemia, not for routine maintenance. It lacks electrolytes and can cause hyperglycemia and fluid shifts.
Option C: This description is redundant and confusing. DNS (Dextrose Normal Saline) already contains 0.9% NS. This is not a standard medical fluid terminology.
Option D: DNS (D5% in 0.9% NS) contains a high chloride load (154 mEq/L), which can cause hyperchloremic metabolic acidosis. Balanced solutions are preferred for pediatric maintenance to avoid this complication.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pediatric Intravenous Fluid Therapy as background academic context rather than a clinical decision trigger.
A nurse's primary responsibility is to administer medications and fluids safely. This includes understanding the rationale for a specific IV fluid and questioning any order that seems inappropriate for the patient's age and condition.
Nurses must monitor children on IV fluids for signs of complications, including fluid overload (e.g., edema, crackles), electrolyte imbalances, and issues with glucose levels (hypo- or hyperglycemia).
Accurate calculation of fluid rates using methods like the 4-2-1 rule and meticulous monitoring of intake and output are critical nursing skills in pediatrics.

How to Approach the Question

First, identify the key patient characteristics: a 6-year-old child. This immediately signals that pediatric principles apply.
Next, understand the clinical context: the child is NPO for 4 hours for a procedure. This indicates a need for 'maintenance' fluids, not resuscitation or deficit replacement.
Evaluate each fluid option based on its suitability for pediatric maintenance.
Recall that ideal pediatric maintenance fluids should be isotonic, contain a small amount of dextrose to prevent hypoglycemia, and have a balanced electrolyte profile to avoid complications like acidosis.
Compare the options: Isolyte-P is specifically designed for this purpose. 10% glucose is for treatment, not maintenance. DNS has a high chloride load. This systematic elimination leads to the correct answer.

Concept Tested & Keywords

Concept Tested: Pediatric Intravenous Fluid Therapy
Stem keywords: 6 year old, NPO, endoscopy, fluid
Lead-in keywords: Which of the following
Clinical cues: Patient is a child (6 years old), indicating pediatric-specific considerations are necessary.
Clinical cues: Patient is NPO for a short duration (4 hours), requiring maintenance fluid, not deficit replacement.

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E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 571-573

E6 Ghai Essential Pediatrics(pp 26-904 of 913) p. 57-59

Practise the full NORCET 3 - 2022 (Shift-2)

Attempt every question from this paper in a timed mock, then review the full solution for each one.