Resources for you

Learn more about changes have been made to the eGFR (estimated glomerular filtration rate) calculation.

Learn what the stages of chronic kidney disease (CKD) refer to and how stages are based on the eGFR test. Get an overview of each of the five stages.

Learn about kidney tests that can help doctors find kidney disease early, such as blood tests, urine tests, kidney ultrasound and kidney biopsy.

Learn about Kidney failure, also called end-stage renal disease (ESRD) or end-stage kidney disease (ESKD), including symptoms, causes and life expectancy with d...

Learn about eGFR (estimated glomerular filtration rate), what it means and what you should do based on your result.

In Stage 4 CKD, you have an eGFR between 15 and 29. You may also have protein in your urine (i.e., pee). Stage 4 CKD is the last stage before kidney failure. It...

In Stage 3 CKD, your eGFR is between 30 and 59. You may also have protein in your urine (i.e., your pee). Your kidneys have damage that affects how well they wo...

In Stage 2 CKD, the damage to your kidneys is still mild, and you have an eGFR between 60 and 89. Your kidneys are still working well, but at this stage, you wi...

In Stage 5 CKD, you have an eGFR of less than 15. You may also have protein in your urine (i.e., your pee). Stage 5 CKD means your kidneys are getting very clos...