1. What is the Infant eGFR Equation?

The Infant eGFR equation estimates glomerular filtration rate (GFR) specifically for infants using height and serum creatinine. This simplified formula is designed for pediatric populations where traditional adult equations may not be appropriate.

2. How Does the Calculator Work?

The calculator uses the Infant eGFR equation:

Where:

• \( Height \) — Infant height in centimeters (cm)
• \( Scr \) — Serum creatinine in milligrams per deciliter (mg/dL)
• 0.45 — Empirical coefficient for infant population

Explanation: This equation provides a quick estimation of kidney function in infants based on the relationship between height, creatinine levels, and glomerular filtration rate.

3. Importance of Infant eGFR Calculation

Details: Accurate GFR estimation in infants is crucial for detecting congenital kidney abnormalities, monitoring kidney development, and guiding medication dosing in pediatric patients.

4. Using the Calculator

Tips: Enter infant height in centimeters and serum creatinine in mg/dL. Both values must be positive numbers. Ensure measurements are taken accurately for reliable results.

5. Frequently Asked Questions (FAQ)

Q1: What age range is this equation designed for?
A: This equation is specifically designed for infants, typically from birth up to 2 years of age.

Q2: How does this differ from adult eGFR equations?
A: Infant equations account for rapid growth and development, using height as a key variable instead of age, gender, and race factors used in adult equations.

Q3: What are normal eGFR values for infants?
A: Normal eGFR values in infants vary with age and development but generally range from 30-90 mL/min/1.73m², increasing as the child grows.

Q4: When should this calculation be used?
A: Use for screening congenital kidney disease, monitoring known kidney conditions, or when adjusting medications that require renal clearance calculations.

Q5: Are there limitations to this equation?
A: This is a screening tool and may not be accurate in critically ill infants, those with rapidly changing kidney function, or infants with extreme body compositions.