An RFT (Renal Function Test) blood test is a medical test used to assess how well your kidneys are functioning. It measures the levels of various substances in the blood that indicate kidney health, such as creatinine, urea, electrolytes, and proteins.
Why is the RFT blood test done?
The RFT blood test is typically ordered to:
- Monitor kidney function in people with chronic kidney disease or other conditions that can affect kidney health.
- Diagnose kidney disease if a person is experiencing symptoms such as fatigue, swelling, or blood in the urine.
- Screen for kidney disease in people who are at risk, such as those with diabetes, high blood pressure, or a family history of kidney disease.
- Monitor the effectiveness of treatment for kidney disease.
What is included in an RFT blood test?
The specific tests included in an RFT may vary depending on the doctor's order, but some common tests include:
- Creatinine: This test measures the amount of creatinine in the blood, which is a waste product produced by muscle breakdown.
- Blood urea nitrogen (BUN): This test measures the amount of urea nitrogen in the blood, another waste product produced by the body.
- Uric acid: This test measures the amount of uric acid in the blood, which is a waste product produced by the breakdown of purines.
- Electrolytes: This test measures the levels of various electrolytes in the blood, such as sodium, potassium, chloride, and calcium.
The results of the RFT blood test can help doctors determine if a person's kidneys are functioning properly and identify any potential problems.
Note: The RFT blood test is not a definitive test for kidney disease. Other tests, such as a urinalysis or kidney biopsy, may be needed to confirm a diagnosis.
