Calculating Glomerular Filtration Rate,GFR Calculator for Children -- e-Tools Age

Calculating Glomerular Filtration Rate,GFR Calculator for Children

This calculator estimates glomerular filtration rate based upon the CKiD Schwartz equations and the Bedside Schwartz equation. They are Currently the best equation for estimating glomerular filtration rate (eGFR) in children.


GFR Calculator for Adults	GFR Calculator for Children

Estimation of the Glomerular Filtration Rate in Children
As in adults, measured glomerular filtration rate is considered the best overall index of kidney function in pediatric health and disease. Clearance measurements are both cumbersome and costly; thus, GFR is often estimated according to the serum creatinine in clinical practice. GFR in children is usually estimated by the following two equations:

The CKiD Schwartz Equation

eGFR=39.8 x [ht/Scr]^0.456x [1.8/cysC]^0.418x [30/BUN]^0.079x [1.076male] [1.00female] x [ht/1.4]^0.179

Where:
eGFR=estimated glomerular filtration rate in mL/min/1.73 m²
BUN=blood urea nitrogten in mg/dL
cysC=cystatin C in mg/L
ht (height) = meters
Scr=standardized serum creatinine in mg/dL

The Bedside Schwartz Equation
If measurement of cystatin C is not readily available, the Bedside Schwartz equation is probably best suited to estimate GFR in children with chronic kidney disease but is not optimal for children with GFR higher than 75 mL/min/1.73 m2,expressed as a single equation:

eGFRcr = 41.3 x (height/Scr) if height is expressed in meters

where:
Scr = serum creatinine in mg/dL

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Calculating Glomerular Filtration Rate - Equation:The Bedside Schwartz Equation Height:1.3m Creatinine:0.7mg/dL

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