eGFR Calculator Paediatric UK

UK Paediatric eGFR Equation:

\[ eGFR = 0.413 \times \frac{Height}{Scr} \]

Estimated GFR (eGFR):

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is the UK Paediatric eGFR Calculator?

The UK Paediatric eGFR Calculator uses the Bedside Schwartz equation to estimate glomerular filtration rate (GFR) in children. This equation is specifically validated for paediatric populations and provides a reliable assessment of kidney function using height and serum creatinine measurements.

2. How Does the Calculator Work?

The calculator uses the UK Paediatric eGFR equation:

\[ eGFR = 0.413 \times \frac{Height}{Scr} \]

Where:

\( eGFR \) — Estimated glomerular filtration rate (mL/min/1.73m²)
\( Height \) — Patient's height in centimeters (cm)
\( Scr \) — Serum creatinine in milligrams per deciliter (mg/dL)
\( 0.413 \) — Constant coefficient for the Bedside Schwartz equation

Explanation: This simplified version of the Schwartz equation is widely used in clinical practice for rapid assessment of renal function in paediatric patients.

3. Importance of Paediatric eGFR Calculation

Details: Accurate GFR estimation in children is essential for detecting early kidney dysfunction, monitoring chronic kidney disease progression, and adjusting medication dosages appropriately for paediatric patients.

4. Using the Calculator

Tips: Enter height in centimeters and serum creatinine in mg/dL. Ensure both values are positive numbers. The calculator is specifically designed for paediatric patients.

5. Frequently Asked Questions (FAQ)

Q1: What age range is this calculator suitable for?
A: This calculator is designed for paediatric patients, typically from 1 year to 18 years of age.

Q2: Why is height included in the paediatric eGFR calculation?
A: Height serves as a surrogate for muscle mass in children, which correlates with creatinine production and thus provides a more accurate GFR estimation.

Q3: What are normal eGFR values for children?
A: Normal eGFR values in children vary by age but generally range from 90-140 mL/min/1.73m², with higher values in younger children.

Q4: Can this calculator be used for infants?
A: For infants under 1 year, different equations may be more appropriate as renal function undergoes rapid maturation during the first year of life.

Q5: How does this differ from adult eGFR calculations?
A: Paediatric equations account for the relationship between height (muscle mass) and creatinine production, which differs from adult equations that use age, gender, and race factors.