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Cytology Exam of Urine
Overview & Description
A cytology exam of urine is an examination of the cells that appear in the urine. This test can detect and help diagnose some urinary tract diseases. The urinary tract contains the kidneys, bladder, and the tubes that connect these organs to the outside of the body.
Who is a candidate for the test?
This test is often used to help diagnose diseases of the urinary tract that cause inflammation, as well as cancer. It may be done in people with a family history of bladder cancer.
How is the test performed?
First, a urine sample is obtained by the "clean-catch" method. This helps to avoid cells and bacteria in the urine that interfere with the test. In the clean-catch method, people first wipe themselves with an antiseptic cloth. Then, people urinate into the toilet for a few seconds. After urinating for a few seconds, people are asked to catch a sample of "mid-stream" urine in a special cup. People can then finish urinating in the toilet. The cup is covered and sent to the lab. The urine can then be examined with a microscope.
Preparation & Expectations
What is involved in preparation for the test?
Normally, no special preparation is needed for this test.
Results and Values
What do the test results mean?
Healthy cells are normally found in a urine sample. These cells are always being removed and replaced by the body. If abnormal cells or cancer cells are present in the urine sample, the result is abnormal. This may mean that either inflammation or cancer of the urinary tract is present.
Attribution
Author:David T. Moran, MD
Date Written:
Editor:Smith, Mary Ellen, BS
Edit Date:03/14/00
Reviewer:Adam Brochert, MD
Date Reviewed:09/04/01