Blood in the Urine (Hematuria) (cont.)
Blood in Urine Diagnosis
A number of different tests are used to determine the cause of blood in the urine:
- Urinalysis with microscopic examination of the urine reveals not only blood, but also evidence of infection, such as white blood cells and bacteria. The urinalysis also can show evidence of kidney disease when present.
- Urine culture or tests to identify genetic material of microorganisms can identify the precise cause of an infection.
- Blood tests can be used to evaluate kidney function.
- Cystoscopy is a procedure that is used to examine the inside of the urethra and bladder with a thin tube-like instrument. Tissue samples (biopsies) to rule out cancer cells may be taken using cystoscopy.
- Biopsy of the kidneys can be performed to diagnose kidney diseases that may lead to blood in the urine.
- Imaging tests of the kidneys such as CT scans or X-rays using contrast material (known as an intravenous pyelogram) can be performed to evaluate obstructions in the urinary tract.
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