Kidney Function Test (KFT)
- 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
- 5+ Years
What Is This Test?
A panel that measures urea, BUN, creatinine, eGFR, uric acid, electrolytes (sodium, potassium, chloride), calcium and phosphorus to assess kidney function.
Why this test is performed?
Checks how well your kidneys filter waste and balance fluids and minerals. Recommended for people with diabetes, high blood pressure, swelling, kidney stones, or those on long-term medicines such as painkillers.
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 12 parameters
Kidney Function Test (KFT) (12)
- Blood Urea
- BUN
- BUN/Creatinine Ratio
- Calcium
- Chloride
- Creatinine
- eGFR
- Phosphorus
- Potassium
- Sodium
- Urea/Creatinine Ratio
- Uric Acid
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.
- Report time: In 4 days
- No fasting
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Frequently asked questions
People with diabetes, high blood pressure, heart disease, a family history of kidney disease, age over 60 or on long-term medicines — usually at least once a year.
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 11–35 hours after the sample reaches the lab. You will receive the report online.
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