How to calculate gfr from creatinine formula?

2 answer(s)
Answer # 1 #

For practical purposes, most people use online GFR calculators rather than manual calculation. Here's the simpler MDRD formula that's still sometimes used:GFR = 175 × (SCr)^-1.154 × (Age)^-0.203 × (0.742 if female) × (1.212 if African American)Where: SCr = serum creatinine in mg/dL Age in yearsHowever, I strongly recommend: Using online calculators like the NKF GFR calculator Getting tested professionally - labs account for more factors Understanding results* with your doctorThe formulas have limitations - they're less accurate for very high or low muscle mass, elderly, or certain ethnicities. The CKD-EPI formula is currently considered most accurate for general population. Remember, GFR estimates kidney function and helps stage kidney disease if present.

[3 Year]
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Answer # 2 #

The most common formula for calculating GFR (Glomerular Filtration Rate) from creatinine is the CKD-EPI formula:For women:If serum creatinine ≤ 0.7 mg/dL:GFR = 144 × (SCr/0.7)^-0.329 × 0.993^AgeIf serum creatinine > 0.7 mg/dL:GFR = 144 × (SCr/0.7)^-1.209 × 0.993^AgeFor men:If serum creatinine ≤ 0.9 mg/dL:GFR = 141 × (SCr/0.9)^-0.411 × 0.993^AgeIf serum creatinine > 0.9 mg/dL:GFR = 141 × (SCr/0.9)^-1.209 × 0.993^AgeWhere SCr = serum creatinine in mg/dL, and Age in years. This is quite complex to calculate manually, which is why doctors use online calculators or lab software.

[3 Year]
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