What is GFR lab test for?

GFR on a blood test stands for Glomerular Filtration Rate. This test is used to used to test how well the kidneys are working. It estimates how much blood passes through the filters in the kidney, called the glomeruli, every minute.

The normal value for GFR is 130-140 ml /min of creatinine(a substance used to check kidney functioning)
glomerular filteration rate, this test is done to check the kidney function.
GFR stands for glomerular flow rate. It provides an index for the function of the kidneys.