Glomerular filtration rate gfr is the best overall index of kidney function. The gfr glomerular filtration rate calculator estimates gfr values based on factors including serum creatinine value age race and gender. Normal gfr varies according to age sex and body size and declines with age. Cockcroft gault calculator with si units plasma creatinine pcr mgdl umoll weight wt. For comparison purposes the results for three prevalent formulas used for estimating gfr are provided. Fadem md facp fasn.

This calculator is for people aged 18 years or older. Gfr mlmin173 m² 175 s cr 1154 age 0203 0742 if female 1212 if african american conventional units the equation does not require weight because the results are reported normalized to 173 m² body surface area which is an accepted average adult surface area. However it is absent from the mdrd equation. The implication is that these equations provide similar results. Adult males 140 age in years x weight in kg 72 x serum cr adult females 085 x 140 age in years x weight in kg 72 x serum cr egfr per ckd epi 141 x min crk 1 a x max crk 1 1209 x 0993 age x 1018 if female x 1159 if blackafrican american k 07 for females. Cockcroft gault calculator with si units 4 variable cockcroft gault equation with si units using serum creatinine age weight gender.

For the purposes of drug dosing or estimating gfr in patients with body size that is very different than average gfr can be non normalized using the following equation. The american diabetes association recommends estimation of glomerular filtration rate gfr 1 by either the cockcroft gault 2 or the modification of diet in renal disease mdrd 3 equation in all patients with diabetes. Gfr calculator for adults. Please enter data age years sex male female race non black black creatinine mgdl μmoll cystatin mgl calculate results mdrd studymlmin173 m2 ckd epicrmlmin173 m2 ckd epicysmlmin173 m2 ckd epicr cys cmlmin173 m2. Please fill in the following data. The national kidney foundation recommends using the ckd epi creatinine equation 2009 to estimate gfr.

Egfr in mlmin 173 m2. Gfr 170 x p cr 0999 x age 0176 x bun 0170 x albumin 0318 x 0762 for women x 1180 for blacks levey as et al. Mdrd for adults conventional units. 2 modification of diet in renal disease mdrd. Body weight is a numerator in the cockcroft gault equation. 12 bsa sqrtfracheightincm weightinkg3600 gfrmlmin gfrmlmin173 m2 bsa 173.

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