A child comes in the OPD with acute renal injury (AKI). The possible outcome seen in this child?

NORCET-7 Mains-2024

Child Health Nursing (Pediatrics)

Easy

Appeared in: NORCET-7 Mains-2024

Explanation

Acute Kidney Injury (AKI) is defined by a rapid decline in kidney function, specifically the glomerular filtration rate (GFR).
This impaired filtration prevents the kidneys from effectively clearing metabolic waste products from the blood.
Creatinine, a waste product from muscle metabolism, is normally filtered by the kidneys. In AKI, its level in the blood rises, making it a key diagnostic marker.
According to the Kidney Disease Improving Global Outcomes (KDIGO) criteria, AKI is diagnosed by an absolute increase in serum creatinine of 0.3 mg/dL or more over 48 hours, or a 50% or greater increase from baseline within 7 days.

Option A: Urine specific gravity is not a consistent indicator for all types of AKI. It can be either increased or decreased depending on the cause.
Option C: Blood Urea Nitrogen (BUN) levels increase, not decrease, in AKI. This condition is called azotemia.
Option D: Potassium levels increase (hyperkalemia), not decrease, in AKI because the damaged kidneys are unable to excrete potassium effectively.

Visual 1: Diagram: Pathophysiology of Acute Kidney Injury, showing how reduced GFR leads to the buildup of waste products like creatinine and urea in the bloodstream.
Visual 2: Chart: Comparing laboratory values in prerenal, intrinsic, and postrenal AKI to highlight the differences in findings like urine specific gravity and urine sodium.
Visual 3: Infographic: Key signs and symptoms of AKI in children, including oliguria, edema, and changes in lab values.

Clinical Relevance

Nursing practice connection: Use the key finding related to Laboratory findings in Acute Kidney Injury (AKI) to guide bedside assessment, documentation, and the next nursing action.
Nurses must closely monitor serum creatinine and BUN levels in at-risk children to detect AKI early. Prompt recognition is crucial for initiating timely interventions.
Hyperkalemia is a life-threatening complication of AKI. Nurses should monitor for signs like muscle weakness, palpitations, and ECG changes (e.g., peaked T waves) and be prepared for emergency management.
Accurate monitoring of intake and output is a critical nursing responsibility in managing a child with AKI to prevent fluid overload and guide fluid therapy.

How to Approach the Question

First, identify the core concept of the question, which is the clinical presentation of Acute Kidney Injury (AKI).
Recall the primary function of the kidneys: to filter waste products from the blood and regulate electrolytes and fluid balance.
Consider how an 'acute injury' would affect this function. The filtering capacity (GFR) would decrease.
Predict the consequences: Waste products (like creatinine and BUN) will accumulate in the blood, and electrolyte excretion (like potassium) will be impaired.
Evaluate each option based on this prediction: 'Increased creatinine' directly aligns with the failure to filter waste. 'Decreased BUN' and 'decreased potassium' are the opposite of what is expected. 'Decreased urine specific gravity' is possible but not universal, making it a less reliable sign than increased creatinine.

Concept Tested & Keywords

Concept Tested: Laboratory findings in Acute Kidney Injury (AKI)
Stem keywords: child, acute renal injury (AKI), outcome
Lead-in keywords: possible outcome
Clinical cues: Age/sex group narrows the expected diagnosis, intervention, or normal reference range.
Clinical cues: The care setting changes urgency, monitoring level, and the expected nursing action.

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