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Alternative Names Return to topCystourethrogram - voiding
Definition Return to top
A voiding cystourethrogram is an x-ray examination of the bladder and urethra that is performed while the bladder is emptying.
How the Test is Performed Return to top
The test is performed in a hospital radiology department or in a health care provider's office by an x-ray technician.
You will lie on your back on the x-ray table. A thin, flexible tube called a catheter will be gently inserted into the urethra (the tube that carries urine from the bladder to the outside of the body), and passed into the bladder.
Contrast dye flows through the catheter into the bladder. This dye helps the bladder show up better on x-ray images.
The x-rays are taken from various angles while the bladder is full of contrast dye. The catheter is removed so that you can urinate. Images are taken while your empty your bladder.
How to Prepare for the Test Return to top
You must sign a consent form. You will be given a gown to wear.
Remove all jewelry before the test. Inform the health care provider if you are:
How the Test Will Feel Return to top
You may feel some discomfort when the catheter is placed and while your bladder is full.
Why the Test is Performed Return to top
This test is commonly done to diagnose the cause of urinary tract infections, particularly in those who have repeated infections. It is also used to diagnose and evaluate:
Normal Results Return to top
The bladder and urethra will be normal in size and function.
What Abnormal Results Mean Return to top
Abnormal results may indicate the following:
Additional conditions under which the test may be performed:
Risks Return to top
You may have some discomfort when urinating after this test, because of irritation from the catheter.
You may have bladder spasms after this test, which may be a sign of an allergic reaction to the contrast dye. Contact your health care provider if bothersome bladder spasms occur.Update Date: 10/2/2008 Updated by: Louis S. Liou, MD, PhD, Assistant Professor of Urology, Department of Surgery, Boston University School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.