Kidney Glomerular Filtration Rate eGFR Calculator

Kidney Glomerular Filtration Rate eGFR CalculatorbrImplements 5 following calculation formulas :br1. CKD-EPI 2009 Formula ( recommended by Kidney foundation )br2. MDRD Formulabr3. Mayo Quadratic Formulabr4. Cockroft-Gault Formulabr5. Scwartz ( pediatric, for children ) FormulabrbrDetails on calculation formulas:brbr1. CKD-EPI 2009 Formula ( Chronic Kidney Disease Epidemiology Collaboration )breGFR = 141 X min(SCr/k,1)^a X max(SCr/k,1)^(-1.209) X 0.993^Age X [1.018 if Female] X [1.159 if Black]brwhere SCr is serum creatinine (mg/dL), brk is 0.7 for females and 0.9 for males, bra is 0.329 for females and 0.411 for males, brmin indicates the minimum of SCr/k or 1, brand max indicates the maximum of SCr/k or 1,breGFR - estimate the glomerular filtration rate. brbrbr2. MDRD Formula ( Modification of Diet in Renal Disease )brFor creatinine in µmol/L:breGFR = 32788 X Serum Creatinine^(-1.154) X Age^(-0.203) X [1.210 if Black] X [0.742 if Female]brFor creatinine in mg/dL:breGFR = 186 X Serum Creatinine^(-1.154) X Age^(-0.203) X [1.210 if Black ] X [0.742 if Female]brwhere:breGFR - estimate the glomerular filtration rate brbr3. Mayo Quadratic FormulabreGFR = exp(1.911 + 5.249/Serum Creatinine - 2.114/Serum Creatinine^2 - 0.00686 X Age - [0.205 if Female] ) brIf Serum Creatinine lt; 0.8 mg/dL, use 0.8 mg/dL for Serum Creatinine.brbr4. Cockroft-Gault FormulabreCCr = ( (140 - Age) X Mass ( in kilograms) X [0.85 if Female] ) / 72 X Serum creatinine ( in mg/dL )brWhen serum creatinine is measured in µmol/L:breCCr = ( 140 - Age ) X Mass ( in kilograms ) X Constant brwhere :breCCr - estimated creatinine clearance rate,brConstant is 1.23 for men and 1.04 for women.brbrbr5. Scwartz ( pediatric, for children ) FormulabreGFR = k X Height / Serum CreatininebrWhere k is a constant that depends on muscle mass, which itself varies with a child#39;s age:brIn first year of life, for pre-term babies k=0.33 and for full-term infants k=0.45brFor infants and children of age 1 to 12 years, k=0.55.breGFR - estimate the glomerular filtration rate.brbrChronic kidney disease stages:br0) Normal kidney function - GFR above 90 mL/min/1.73 m2 and no proteinuriabr1) CKD1 - GFR above 90 mL/min/1.73 m2 with evidence of kidney damagebr2) CKD2 (mild) - GFR of 60 to 89 mL/min/1.73 m2 with evidence of kidney damagebr3) CKD3 (moderate) - GFR of 30 to 59 mL/min/1.73 m2br4) CKD4 (severe) - GFR of 15 to 29 mL/min/1.73 m2br5) CKD5 kidney failure - GFR less than 15 mL/min/1.73 m2.br Some people add CKD5D for those stage 5 patients requiring dialysis; br many patients in CKD5 are not yet on dialysis.brbrInformation source : https://en.wikipedia.org/wiki/Renal_function