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Pediatric GFR Equation:
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The Pediatric GFR Calculator estimates glomerular filtration rate (GFR) in children using the simplified equation based on height and serum creatinine. This method is specifically designed for pediatric populations where traditional adult equations may not be accurate.
The calculator uses the pediatric GFR equation:
Where:
Explanation: This equation provides a quick and reliable estimate of kidney function in children, accounting for the relationship between body size (height) and creatinine clearance.
Details: Accurate GFR estimation in children is essential for detecting kidney dysfunction early, monitoring chronic kidney disease progression, and adjusting medication dosages appropriately for pediatric patients.
Tips: Enter height in centimeters and serum creatinine in mg/dL. Ensure accurate measurements as height changes rapidly during childhood growth periods.
Q1: What age range is this calculator suitable for?
A: This calculator is designed for children and adolescents, typically from 1 to 18 years of age.
Q2: Why use height instead of weight in pediatric GFR calculation?
A: Height is a more stable and reliable indicator of body surface area in growing children and correlates better with GFR than weight alone.
Q3: What are normal eGFR values for children?
A: Normal pediatric GFR values vary by age and body size, but generally range from 90-140 mL/min/1.73m², with higher values in younger children.
Q4: When should this calculator not be used?
A: This equation may be less accurate in infants under 1 year, critically ill children, those with rapidly changing kidney function, or children with extreme body habitus.
Q5: How often should GFR be monitored in children?
A: Frequency depends on the clinical situation - more frequent monitoring for children with known kidney disease or those taking nephrotoxic medications.