Doctor insights on:
Gfr Test How Does It Work
Should i be worried that i consistently test in low 80s on GFR blood test? Is there anything I should do?
Ignore it: The "gfr" given on lab sheets these days is a subscientific estimate of the rate at which water passes from blood into the the filtrate that will become urine. For a healthy person, the "gfr estimate" is not helpful. It ignores variability in body musculature, how much protein you have eaten recently, and other factors. ...Read moreSee 1 more doctor answer
Normal 90-120: A GFR of 129 is no problem. We are concerned that a rate below 90 could indicate sluggish kidney function and a rate below 60 means chronic kidney trouble while a rate below 15 means very serious problems. Your kidney function appears to be very good. ...Read moreSee 2 more doctor answers
Why does GFR test ask about african-american? What's optimal gfr? Are age, gender, and race taken into account? Why?
It's the muscle mass: The muscle mass is more in african americans vs others, men vs women, young vs old. When muscle mass is high, creatinine will be expected to be high without actual kidney weakness (overestimates kidney weakness). Accordingly, we need to factor these elements in the equation to estimate kidney function (gfr). ...Read moreSee 1 more doctor answer
On my lab work it says GFR NONAFR is 111 and GFR AFRICAN is 134. Is this normal? I didn't know what this meant.
Subscientific: Using a spot creatinine to estimate glomerular filtration rate is subscientific but it's something that our weird medicolegal environment forces labs to do, using a formula that was intended for populations rather than individuals. The number is estimated using different formulas "because black people are more muscular than white people." Creatinine's produced by muscle. Be glad for good health. ...Read more
I had my yearly physical yesterday and i received my blood work results today and my GFR is 72.29 should I be worried?
Consult your doctor: Your GFR is slightly below the normal. You should see your doctor to determine the cause and discuss measures to keep if from getting worse. ...Read more
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