eGFR (Estimated Glomerular Filtration Rate) – eGFR estimates how much blood your kidneys filter each minute, calculated from creatinine plus factors like age and sex.
What eGFR measures
eGFR measures overall kidney function – the standard number used to stage kidney health.
Typical ranges
90 or above is generally normal; declining values (especially under 60 for 3+ months) can indicate chronic kidney disease. Reference ranges differ between laboratories and by age and sex, so always read your result against the range printed on your own report.
What high results can mean
Higher is generally better and indicates strong filtration.
What low results can mean
A falling eGFR can signal reduced kidney function and warrants follow-up.
How the test is done
Calculated from a blood creatinine result; no fasting required. At-home collection works well for this marker when the sample is processed by a certified lab.
FAQ
What is a normal eGFR level?
90 or above is generally normal; declining values (especially under 60 for 3+ months) can indicate chronic kidney disease. Your ideal target depends on your age, sex, and health history, so review results with a clinician.
What does a high eGFR result mean?
Higher is generally better and indicates strong filtration.
Can I test eGFR at home?
Yes. Calculated from a blood creatinine result; no fasting required. An at-home sample processed by a certified lab gives reliable results.
This article is educational and not a substitute for medical advice. Discuss your results with a qualified clinician.