Description
Tests Included in Kidney Function Test (KFT):
The kidney function test typically includes the following parameters:
Sample Required for KFT :
The Kidney or Renal Function Test typically requires a blood sample and, in some cases, a urine sample. A healthcare professional will collect the blood sample by performing a simple blood draw from a vein in your arm. The urine sample may be collected in a sterile container during a specific time period.
Kidney Function Test Time:
The test for Renal Function is relatively quick, with the blood draw taking only a few minutes. However, the total time for the test, including sample processing and analysis in the laboratory, may vary. Typically, results are available within a few days.
Kidney Function Test Normal Range:
The normal range for Renal Function test values may vary depending on the specific parameters being measured, individual laboratory reference values, and factors such as age and gender. Common parameters include blood urea nitrogen (BUN), creatinine, and estimated glomerular filtration rate (eGFR).Â
Below is the reference table for Kindney function test normal values:
| Parameter | Normal Range |
| Serum Creatinine | 0.6 – 1.2 mg/dL (men)
0.5 – 1.1 mg/dL (women) |
| Blood Urea Nitrogen | 8 – 20 mg/dL |
| Glomerular Filtration Rate (GFR) | > 90 mL/min/1.73m² |
| Serum Uric Acid | 3.5 – 7.2 mg/dL |
| Serum Potassium | 3.5 – 5.1 mEq/L |
| Serum Sodium | 135 – 145 mEq/L |
| Serum Chloride | 96 -106 mEq/L |
| Serum Albumin | 3.4 – 5.4 g/dL |
What is KFT or RFT?
The Kidney Function Test (KFT) or Renal Function Test (RFT) is a group of tests that evaluate the function of the kidneys. It measures various parameters, including BUN, creatinine, and eGFR, to assess kidney health and detect any abnormalities or signs of kidney disease.
KFT Test Procedure:
During the Renal Function Test, a healthcare professional will collect a blood sample from your arm using a needle. The blood sample is then sent to the laboratory for analysis. In some cases, a urine sample may also be collected for additional analysis. The test measures the levels of certain substances in the blood and urine to evaluate kidney function.
When to take the Kidney function test:
The timing for the Renal Function Test may vary depending on your specific situation and the guidance of your healthcare provider. It may be performed as part of routine health check-ups or if you have symptoms or risk factors associated with kidney disease. Your healthcare provider will determine the appropriate timing for the test.
Who should take this KFT test:
The Renal Function Test is recommended for individuals who have risk factors for kidney disease, such as diabetes, high blood pressure, or a family history of kidney disease. It is also performed for those with symptoms of kidney dysfunction, including frequent urination, blood in the urine, swelling, or unexplained fatigue.
Precautions for exceptional cases (pregnancy, etc.):
For pregnant women or individuals with specific medical conditions, additional considerations and specific kidney function tests may be recommended. It is important to inform your healthcare provider about any specific medical conditions, pregnancy, or medications you are taking before undergoing the test.