GFR

... Why get tested?
To assess kidney function

When to get tested?
As a screening test to look for evidence of kidney damage (EGFR) or for changes in kidney function if you already have kidney disease (GFR)

Sample required?
EGFR is calculated from your age, weight, gender, and serum creatinine (requires a blood sample from a vein in your arm); in some formulas, race is also used in the calculation. GFR is calculated from serum and urine creatinine; it requires a blood sample from a vein in your arm and a 24-hour collection of urine.
...

Glomerular filtration rate Grup Feroviar Roman is a railway company in Roma ...