Estimated Glomerular Filtration Rate (eGFR): Test Levels Healthcare providers use estimated glomerular filtration rate (eGFR) to determine if you have kidney damage and stage kidney disease eGFR measures your kidneys’ ability to filter toxins from your blood
Blood test: eGFR (estimated glomerular filtration rate) eGFR (estimated glomerular filtration rate) is a measure of how well your kidneys are working Your eGFR is an estimated number based on a blood test and your age and sex
How eGFR Is Measured and What Your Results Mean Learn how eGFR is calculated from a simple blood test, what your number actually means for kidney health, and why it’s just one piece of the picture