A voiding cystourethrogram (VCUG) examines the bladder and urethra by x-ray while the bladder is emptying. Doctors use a VCUG to look for abnormalities in the structure or function of the bladder and urethra. This test usually is performed in the radiology department of a hospital on an outpatient basis. It uses contrast dye for better pictures of the urinary structures. Side effects are usually minimal.
Preparation
You will be asked to remove all jewelry, sign consent forms and provide your medical history including information about allergies to medications. It is not necessary to fast before a VCUG unless your doctor gives you specific instructions to do so.
Sedation
For adults, sedation is not necessary for a VCUG. Some doctors recommend sedation for young children for comfort and keep the child still during the procedure.
Procedure
As you lie on the table, a thin tube called a catheter will be inserted through the urethra into the bladder. Saline with contrast dye will flow into the bladder and continuous x-rays will be taken of the full bladder and of the bladder as it voids.
Side Effects in Adults
Possible side effects of a VCUG include an allergic reaction to the contrast dye and irritation while urinating after the test due to the catheter.
Side Effects in Children
In addition to the possible side effects for adults, children may experience some anxiety after a VCUG due to the catheterization and overall hospital experience. Explaining the test beforehand can help to alleviate this anxiety.
Tags: bladder urethra, into bladder
