Question

What is the formula to calculate gfr​

Answer 1

Answer:

White or other Female GFR = 144 × (Scr/61.9)-0.329 × (0.993)Age

White or other Female GFR = 144 × (Scr/61.9)-1.209 × (0.993)Age

White or other Male GFR = 141 × (Scr/79.6)-0.411 × (0.993)Age

White or other Male GFR = 141 × (Scr/79.6)-1.209 × (0.993)Age

Expressed as a single equation:

eGFR =

141 x min(SCr/κ, 1)α x

max(SCr /κ, 1)-1.209 x

0.993Age x

1.018 [if female] x

1.159 [if Black]

Abbreviations / Units

eGFR (estimated glomerular filtration rate) = mL/min/1.73 m2

SCr (standardized serum creatinine) = mg/dL

κ = 0.7 (females) or 0.9 (males)

α = -0.329 (females) or -0.411 (males)

min = indicates the minimum of SCr/κ or 1

max = indicates the maximum of SCr/κ or 1

age = years

Answer 2

Your GFR tells you how much kidney function you have. It is defined as the sum of the filtration rates of all your functioning nephrons (filtering units making up the kidneys). An estimate of the normal value for your GFR can be obtained by using the equation: GFR = 140 – [your age].