1. What is the Peds GFR Equation?

The Pediatric GFR equation estimates glomerular filtration rate (GFR) in children using height and serum creatinine. This simplified formula provides a practical method for assessing kidney function in pediatric populations.

2. How Does the Calculator Work?

The calculator uses the Pediatric GFR equation:

Where:

• \( Height \) — Patient height in centimeters (cm)
• \( Scr \) — Serum creatinine in milligrams per deciliter (mg/dL)
• \( 0.413 \) — Empirical coefficient derived from pediatric population studies

Explanation: This equation leverages the relationship between height, creatinine production, and glomerular filtration rate in children, providing a reliable estimate of kidney function.

3. Importance of Pediatric GFR Calculation

Details: Accurate GFR estimation in children is essential for detecting early kidney dysfunction, monitoring chronic kidney disease progression, and adjusting medication dosages appropriate for pediatric renal function.

4. Using the Calculator

Tips: Enter height in centimeters and serum creatinine in mg/dL. Ensure both values are positive and measured accurately. This calculator is specifically designed for pediatric populations.

5. Frequently Asked Questions (FAQ)

Q1: What age range is this equation appropriate for?
A: This equation is primarily designed for children and adolescents, typically from 1 to 18 years of age.

Q2: How does this differ from adult GFR equations?
A: Pediatric equations account for the relationship between height, body surface area, and creatinine production, which differs significantly from adults.

Q3: What are normal eGFR values in children?
A: Normal pediatric eGFR values vary by age and body size, but generally range from 90-140 mL/min/1.73m² in healthy children.

Q4: Are there limitations to this equation?
A: This equation may be less accurate in children with extreme body habitus, malnutrition, or rapidly changing kidney function.

Q5: When should this calculation be used?
A: Use for routine screening, monitoring known kidney disease, and when considering nephrotoxic medications in pediatric patients.