KFT Test at Home
Kidney Function Tests assess renal health by measuring waste products like urea, uric acid, and creatinine in the blood, helping detect kidney damage or chronic renal disease.
Medically Reviewed by Dr. Anita Malhotra, MD (Pathologist) — Updated June 2026
What Is the KFT Test?
The KFT Test is a critical diagnostic screen performed to evaluate key biomarkers in your blood. Regular testing plays a vital role in the early detection and management of health issues, ensuring you can take proactive control of your wellbeing.
What Does the KFT Test Measure?
| Parameter | What It Shows | Normal Range |
|---|---|---|
| Serum Creatinine | Waste product from muscle wear-and-tear cleared by kidneys | 0.6—1.2 mg/dL |
| Blood Urea Nitrogen (BUN) | Waste product from liver protein breakdown cleared by kidneys | 7—20 mg/dL |
| Uric Acid | Waste product from chemical purine breakdown; high levels cause gout | 3.5—7.2 mg/dL |
| Urea | Form of nitrogen waste filtered by kidneys | 15—45 mg/dL |
| BUN / Creatinine Ratio | Ratio calculated to distinguish types of kidney impairment | 10:1 to 20:1 |
How to Prepare for the KFT Test
Preparing for your home blood test is fast and easy:
- Fasting: Fasting is generally not required for this test.
- Hydration: Drink plenty of plain water before your slot. Staying hydrated helps the phlebotomist locate veins easily.
- Medications: Consult your doctor on whether you should pause any daily supplements or prescription drugs before the test.
Report Turnaround Time
Reports are processed at state-of-the-art NABL-accredited Thyrocare laboratories and delivered digitally via email and SMS within 24 to 48 hours after sample collection.
Book Your KFT Test at Home Today
Accredited lab testing — Free doorstep collection — Smart digital reports — Starting at ₹ 399
Book NowFrequently Asked Questions
What is included in a Kidney Function Test (KFT)?
KFT (also known as Renal Function Test or RFT) typically measures Serum Creatinine, Blood Urea Nitrogen (BUN), Urea, Uric Acid, and mineral electrolytes to assess kidney filtration capacity.
Is fasting required for KFT?
Fasting is not strictly required for a standalone KFT. However, morning sample collection is preferred. Avoid eating large amounts of cooked meat or taking creatinine supplements before the test, as it can temporarily raise blood creatinine levels.
How much does a KFT cost at home?
A complete KFT panel with free home collection starts from ₹ 399. Results are processed at certified, NABL-accredited diagnostic labs.
What does a high creatinine level mean?
A high creatinine level indicates that your kidneys are not filtering waste products efficiently. It can be a sign of kidney disease, kidney stones, dehydration, excessive protein intake, or muscle injury.
How does hydration affect KFT results?
Severe dehydration can cause a disproportionate rise in Blood Urea Nitrogen (BUN) relative to creatinine, resulting in an abnormal BUN/Creatinine ratio. Drinking adequate water before the test is recommended.
