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GFR Calculators

GFR, glomerular filtration rate, is the best values to indicate kidney function. Knowing one's GFR helps your doctor to find your stage of kidney disease. It is important for doctors to make a proper treatment plan.

What is GFR?

GFR (glomerular filtration rate) is a measure of how well your kidneys are filtering waste from your blood, and it can be estimated from a measurement of creatinine in your blood.

How to calculate your GFR?

GFR is calculated with several necessary values as follows. GFR calculator is for use with Scr reported in mg/dL.

GFR (mL/min/1.73 m2) = 175 × (Scr)-1.154 × (Age)-0.203 × (0.742 if female) × (1.212 if African American) (conventional units)

Necessary Values for GFR

- Gender. Men usually have more muscle mass than women, so the calculation is adjusted.

- Age. GFR levels drops with the age increasing.

- Serum Creatinine. Creatinine is the waste products of muscle activity, which is removed out of the body by kidneys normally. Usually creatinine between 0.8~1.6, but may be higher or lower.

- Race. African Americans always have a larger muscle mass than other races, so the calculation is adjusted.

Clinical indication of GFR

GFR is one of the best tests that your doctors use to show how well your kidneys function is. The GFR result helps your doctor to figure out your stages of kidney disease and make your treatment plant.

NOTE: CKD EPI GFR is only valid with creatinine methods are traceable to IDMS

CKD EPI Value: epi

MDRD GFR: mdrd

(Age, Race, Gender, Plasma creatinine)

After you get your GFR value, please write it down below. We will provide you some individualized suggestions on your daily diet, exercise,treatment etc and help you manage your kidney problem better.

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