Understanding Your Kidney Function Report
A kidney function test (KFT or RFT) checks how well your kidneys are working. The main values are creatinine, urea and eGFR. This page explains them in simple words.
Creatinine
Creatinine is a waste product your kidneys clear from the blood. Typical ranges are roughly 0.7–1.3 mg/dL for men and 0.6–1.1 mg/dL for women. A value above the typical range can reflect kidney stress, but muscle mass and hydration also affect it — a doctor reads it in context.
Urea / BUN
Urea is another waste product, measured in mg/dL. It moves with hydration and diet as well as kidney function, so doctors look at it alongside creatinine rather than on its own.
eGFR
eGFR is a calculated number that estimates how well the kidneys are filtering. A lower eGFR gets attention. It is an estimate — your doctor interprets it with your creatinine and overall picture.
Questions you could ask your doctor
- Is my creatinine in a healthy range for me?
- Does my eGFR need any follow-up?
- Should this test be repeated to confirm?
Frequently asked questions
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This page is for general understanding only. It is not medical advice, diagnosis, or treatment. Please consult your doctor about your specific report.