Estimated Glomerular Filtration Rate (eGFR) Test
- Category
- Kidney
- Sample
- Blood sample taken from a vein in your arm
- Reports () Terms & Conditions Report time varies with time of sample collection.
- In 2 days
- Fasting
- No Fasting
- Age
- Above 18 Years
What Is This Test?
Estimated Glomerular Filtration Rate (eGFR) is calculated from your blood creatinine, age and sex (using the CKD-EPI formula) to estimate how much blood your kidneys filter each minute.
Why this test is performed?
The best overall measure of kidney function, used to detect and stage chronic kidney disease (CKD) and adjust medicine doses. An eGFR below 60 mL/min/1.73 m² for 3 months or more indicates CKD.
Who should take this test?
Swelling of feet or face, change in urine, high BP, diabetes, kidney stones, or people on long-term painkillers.
Test Preparation
No fasting needed.
What's included 2 parameters
eGFR(1 Parameters) (1)
- eGFR (CKD-EPI)
Creatinine (1)
- Creatinine
Medical disclaimer · for information only, not medical advice
This article is for general information and education only. It is not medical advice, does not create a doctor–patient relationship, and is not a substitute for consultation with a qualified doctor who has assessed your individual situation. Never delay seeking medical advice because of something you have read here.
In a medical emergency, call 112, or 108 for an ambulance where that service operates, or go to your nearest emergency department. If you are in mental health distress, Tele-MANAS is free and available 24×7 on 14416.
Read our Editorial Policy and Medical Review Process.
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- No fasting
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Frequently asked questions
It may be less accurate in very muscular or very thin people, children, pregnancy and the elderly; cystatin C may help in such cases.
No fasting is needed. You can eat and drink normally unless your doctor has advised otherwise.
Blood sample taken from a vein in your arm.
Usually within 12–36 hours after the sample reaches the lab. You will receive the report online.
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