What is a RFT blood test? Analysis of blood and urine samples can be essential for the evaluation of kidney (renal) function. The following are some of the basic renal function tests. Blood urea nitrogen (BUN) provides a rough measurement of the glomerular filtration rate, the rate at which blood is filtered in the kidneys. What is included in a renal function test? Such tests include: BUN (Blood urea nitrogen) Creatinine - blood. Creatinine clearance. What is a normal renal function test? A normal BUN level is between 7 and 20 mg/dl. As kidney function decreases, the BUN level increases. Urine Tests. Some urine tests require only a few ounces of urine. But some tests require collection of all urine produced for a full 24 hours. "Glovision Diagnostics" We are providing all Diagnostic Facilities in our center.... We have Ultramodern Songraphy Facility We have 2 D Echo Facility We have Doppler Facility We are doing All Pathology Tests We have Digital X-ray We have ECG facility Visit us @ "diagnosticcentrepune.in"