Blood test: eGFR (estimated glomerular filtration rate)

Kidney Failure Risk Factor: Estimated Glomerular Filtration Rate (eGFR)

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An Overview of the eGFR Blood Test

What Your eGFR Number Means (CKD Stages) S1 (Normal/High): eGFR >90, but with other signs of kidney damage. S2 (Mildly Decreased): eGFR 60-89, with other signs of damage. S3a (Mild-Moderate): eGFR 45-59. S3b (Moderate-Severe): eGFR 30-44. S4 (Severe Decrease): eGFR 15-29 (referral to specialist needed). S5 (Kidney Failure): eGFR