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. Prediction of creatinine clearance from serum creatinine.
Patient Characteristics With Gfr Download Table
Gfr weight height. K 07 for females. These include age gender weight height and race. Formulas used in this calculatorcreatinine clearance crcl. Refer to the table below for population mean estimated gfr for a number of age ranges. Normal gfr varies according to age sex and body size and declines with age. This level of creatinine is used in a formula to calculate the gfr.
Body weight is a numerator in the cockcroft gault equation. However it is absent from the mdrd equation. Age weight gender serum creatinine creatinine clearance value 140 ageweight kg 72 x s cr in mlmin multiply by 85 if female reference. The normal range of gfr adjusted for body surface area is 100 to 130 mlmin173m 2 in men and 90 to 120mlmin173m 2 in women below the age of 40. Cockcroft gault calculator with si units plasma creatinine pcr mgdl umoll weight wt. It may be done to diagnose or monitor chronic kidney disease.
Glomerular filtration rate gfr is the volume of fluid filtered from the renal kidney glomerular capillaries into the bowmans capsule per unit time. X 085 for women 2 modification of diet in renal disease mdrd. 170 x p cr 0999 x age 0176 x bun 0170 x albumin 0318 x 0762 for women x 1180 for blacks. Cockcroft dw gault mh. How do i get ready for the test. The implication is that these equations provide similar results.
The chronic kidney disease epidemiology collaboration ckd epi equation was developed as a follow up to the mdrd equation in an attempt to be as accurate in describing renal function at lower gfr less than 60 mlmin173 m 2 but more accurate at a higher gfrthe ckd epi equation was developed and validated retrospectively in 8254 patients from 10 studies. After age 40 gfr decreases progressively with age. Please fill in the following data. A blood test will be done to measure the amount of creatinine in your blood. 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 mincrk 1 a x maxcrk 1 1209 x 0993 age x 1018if female x 1159if blackafrican american. Glomerular filteration rate gfr glomerular filtration rate gfr is the best overall index of kidney function.
Other factors are used to calculate gfr.
Gallery of Gfr Weight Height
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