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 solution specifically formulated for pediatric maintenance, aligning with current guidelines.
It contains 5% dextrose, which is essential to prevent hypoglycemia and ketosis in a fasting child.
Its electrolyte profile, including a buffer, is more physiologic than saline-based fluids, minimizing the risk of acid-base disturbances like hyperchloremic acidosis.

Option B: 10% glucose is a hypertonic solution used for treating hypoglycemia, not for routine maintenance. It lacks the essential electrolytes (sodium, potassium) required for fluid balance.
Option C: This option is nonsensical. DNS stands for 'Dextrose Normal Saline,' which already contains 0.9% NS. The phrasing is redundant and does not represent a standard IV fluid.
Option D: DNS (5% Dextrose in 0.9% Normal Saline) is not the preferred choice. It is hypertonic and contains a high, non-physiologic chloride load (154 mEq/L), which increases the risk of hyperchloremic metabolic acidosis.

Visual 1: Infographic: Comparison of common IV fluids (Isolyte-P, 0.9% NS, D5W, DNS), showing their osmolarity and concentrations of Na+, K+, Cl-, and Dextrose.
Visual 2: Flowchart: Decision-making for selecting pediatric maintenance fluids based on age, clinical status (NPO, dehydration), and duration.

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.
Choosing the correct IV fluid is a critical nursing responsibility to prevent iatrogenic complications in children, who are more vulnerable to fluid and electrolyte shifts.
Nurses must monitor for signs of hypoglycemia (irritability, lethargy, tremors) in any child who is NPO, as their glycogen stores are limited.
The shift from using 0.9% saline-based fluids to balanced isotonic solutions for maintenance is a key patient safety initiative to reduce the risk of kidney injury and metabolic acidosis.

How to Approach the Question

Identify the patient population: A 6-year-old child.
Note the clinical context: NPO for 4 hours for a procedure.
Determine the primary need: A maintenance IV fluid to prevent dehydration and hypoglycemia.
Recall the principles of modern pediatric maintenance fluids: They should be isotonic, contain dextrose (usually 5%), and have a balanced electrolyte profile to mimic plasma.
Evaluate each option against these principles. Isolyte-P fits all criteria.
Eliminate other options based on their shortcomings: 10% glucose lacks electrolytes, DNS has an unbalanced high chloride content, and 'DNS with 0.9% NS' is an illogical formulation.

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 6-year-old child, indicating pediatric-specific fluid needs.
Clinical cues: Patient is NPO for 4 hours, indicating the need for a maintenance fluid to prevent hypoglycemia and dehydration.

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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.