KFT (Kidney Function Test)
Checks how well your kidneys filter waste from your blood.
Also called: Renal function test, RFT, kidney profile
What is it?
The kidney function test measures waste products such as creatinine and urea, plus salts such as sodium and potassium. Doctors use it to find kidney problems and to check that some medicines are safe for you.
How to prepare
Usually no special preparation. Drink water normally. Some labs prefer fasting if it is combined with sugar or cholesterol tests.
Report time: Usually the same day or next day.
Usual numbers
| Measure | Typical adult range |
|---|---|
| Reference ranges | These differ between labs and by age and sex. Use the range printed on your own report. |
Ranges are typical values used in India. Every lab prints its own range on your report, and that range is the one to follow. A number outside the range does not always mean disease. Your doctor decides what it means for you.
What labs charge
| Lab | Price | City | Source | Checked |
|---|---|---|---|---|
| Dr Lal PathLabs | ₹850 | Pune (home-collection listing; page header is unclear) | Bajaj Finserv Health listing | 13 Nov 2026 |
Prices change often and can differ by city, home collection and offers. Always confirm the final price on the lab’s own page before you book. Labs not listed here have not been checked yet.
Questions people ask
Is KFT the same as RFT?
Yes. KFT (kidney function test) and RFT (renal function test) are two names for the same type of test.
Medical review: This page is general information. A qualified doctor will review our medical pages and the reviewer’s name and date will be shown here. Until then, please treat it as a starting point and speak to your doctor.