Kidney Function and eGFR
Understand eGFR, creatinine and when kidney disease is diagnosed.
What eGFR is
The estimated glomerular filtration rate uses creatinine, age and sex to estimate how well kidneys filter blood. The CKD-EPI 2021 equation no longer uses race.
Stages
An eGFR of 90 or more is normal, and under 60 for three months suggests chronic kidney disease. Albumin in urine also guides staging.
Protecting kidneys
Control blood pressure and blood sugar, avoid regular NSAIDs, stay hydrated and have yearly tests if at risk.
Try it: eGFR Kidney Function Calculator
Example with sample values. Open the full calculator →
An eGFR under 60 for three months or more suggests chronic kidney disease; stages also depend on urine albumin. Discuss results with your clinician.
Educational content only. This article does not replace advice from a qualified health professional. Medical disclaimer.