This health tool will evaluate and retrieve the overall index of kidney function for adults and children in two separate tabs by taking account of the serum creatinine level, age, sex and race.. Measured creatinine should be in steady state. There are specific steps you can take at every stage of CKD to help manage your health and feel your best. The Schwartz formula was devised in the mid-1970s to estimate GFR in children. This free GFR calculator estimates glomerular filtration rate for both adults and children based on serum creatinine value. Serum creatinine is measured in mg/dL. Pediatric Calculators CKiD SCHWARTZ AND BEDSIDE SCHWARTZ Revised Pediatric Equations by Stephen Z. Fadem, M.D., FACP, FASN. How does this GFR calculator work? eGFR (estimated glomerular filtration rate) = mL/min/1.73 m2 This equation was updated in 2009 and is the best method for estimating GFR in children from 1 to 18 years old. See here for more on our approach to addressing race and bias on MDCalc. Estimating GFR takes much less time, and measurement of GFR is very laborious. In order to accomplish this task it returns the GFR value based on a few creatinine equations that will be described below. Compare the results of several popular formulas, or explore hundreds of other calculators addressing topics such as health, fitness, finance, math, and more. Height is measured in cm. A calculator for determining glomeruler filtration rate (GFR) in children using the Schwartz formula. These equations have not been validated outside of the range of GFR of 15-75 ml/min per 1.73m 2.. Cystatin C: Creatinine Clearance: Original Schwartz Estimate. We used to calculate all the GFRs as fellows at Albert Einstein in the Bronx, New York. This formula may be most accurate in the range of 15 to 75 mL/min per 1.73 m2. Knowing your glomerular filtration rate (GFR) will help you understand how well your kidneys are functioning. Estimate glomerular filtration rate (creatinine clearance) from serum creatinine, the patient's height, and a proportionality constant using the original Schwartz method. This calculator includes inputs based on race, which may or may not provide better estimates, so we have decided to make race optional. Pediatric Glomerular Filtration Rate (P-GFR) Calculator Estimates the Pediatric Glomerular Filtration Rate (P-GFR), as measure of kidney function by Schwartz 2009 and other two equations. For the same creatinine value, this calculator estimates a higher GFR for Black patients. This equation assumes the use of creatinine methods with calibration traceable to IDMS. Using our GFR calculator, you can find out your estimated GFR and determine which stage of chronic kidney disease (CKD) you may be in. 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