A 10-year-old child presented with hyperglycemia. He was diagnosed with Severe DKA, HCO3- of 4, pH of 7.0, RB… - INI-CET EXAM -2025

INI-CET EXAM -2025

Child Health Nursing (Pediatrics)

Hard

Appeared in: INI-CET EXAM -2025

Explanation

The initial priority in severe pediatric DKA is aggressive fluid resuscitation to correct dehydration and restore tissue perfusion.
A fluid bolus of 20 mL/kg of Normal Saline (NS) is a standard and appropriate initial volume for a child with severe dehydration (estimated at 10% deficit).
NS is the preferred isotonic fluid for initial resuscitation over Ringer's Lactate (RL) to avoid interference with acidosis monitoring.
Insulin therapy is correctly initiated after the initial fluid bolus to prevent a precipitous drop in osmolality and reduce the risk of cerebral edema.
The phrase 'followed by insulin infusion & fluid' correctly implies the multi-step process of DKA management, where subsequent fluids will contain necessary electrolytes like potassium.

Option A: While 10 ml/kg of NS is a reasonable fluid bolus, it may be insufficient for a child in severe DKA with a 10% estimated fluid deficit. A more aggressive 20 ml/kg bolus is often preferred to rapidly restore circulatory volume.
Option C: Ringer's Lactate (RL) is not the preferred initial fluid in DKA management. The lactate in RL is metabolized to bicarbonate, which can complicate the monitoring of the patient's metabolic acidosis. Also, a 10 ml/kg bolus may not be sufficient for severe dehydration.
Option D: This option is incorrect for two main reasons: it uses Ringer's Lactate (RL) instead of the preferred Normal Saline, and it does not explicitly mention the crucial subsequent addition of potassium (KCl), which is vital to prevent hypokalemia.

Visual 1: Flowchart: Step-by-step algorithm for the management of pediatric DKA, showing the sequence of fluid resuscitation, insulin therapy, and electrolyte monitoring.
Visual 2: Diagram: Illustrating the pathophysiology of DKA, showing how insulin deficiency leads to hyperglycemia, ketosis, and dehydration.
Visual 3: Table: Comparing the composition of Normal Saline and Ringer's Lactate and explaining why NS is preferred in DKA.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Management of Pediatric Diabetic Ketoacidosis (DKA) as background academic context rather than a clinical decision trigger.
Correctly managing DKA is a critical nursing skill. The initial fluid bolus is the most important first step to prevent cardiovascular collapse. Delaying or providing inadequate fluid can have severe consequences.
Nurses are responsible for hourly monitoring of vital signs, neurological status, blood glucose, and fluid input/output. Any sign of neurological deterioration (headache, confusion, change in consciousness) could indicate cerebral edema, a deadly complication, and must be reported immediately.
What if the patient's initial potassium was 2.8 mEq/L? In that case, insulin therapy would be delayed, and potassium replacement would need to be started immediately with the initial fluids, as starting insulin would drive the already low potassium even lower, risking cardiac arrhythmias.

How to Approach the Question

First, identify the patient's condition and its severity. The lab values (pH 7.0, HCO3 4) clearly point to severe DKA.
Recall the priorities of DKA management: 1) Restore circulatory volume (fluids), 2) Stop ketone production and correct acidosis (insulin), 3) Correct electrolyte imbalances (especially potassium), and 4) Avoid complications (like cerebral edema).
Evaluate the options based on these priorities. The first step is always fluid resuscitation.
Compare the fluid type (NS vs. RL) and volume (10 vs. 20 ml/kg). NS is the standard initial fluid. For severe DKA, a 20 ml/kg bolus is more appropriate for rapid volume expansion.
Check the timing of insulin. It should always follow the initial fluid bolus, not be given concurrently or first.
Select the option that best aligns with the standard of care for severe pediatric DKA: aggressive initial fluid resuscitation with isotonic saline, followed by insulin and electrolyte management.

Concept Tested & Keywords

Concept Tested: Management of Pediatric Diabetic Ketoacidosis (DKA)
Stem keywords: 10-year-old child, hyperglycemia, Severe DKA, HCO3- of 4, pH of 7.0, RBS of 450, K+ 4.5
Lead-in keywords: Management
Clinical cues: The combination of very low pH (7.0) and bicarbonate (4) confirms the diagnosis of severe DKA, which guides the aggressiveness of the initial fluid resuscitation.

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