Urodynamic test (1922)
Key points below
What is a Urodynamic test?
The Urodynamic test is done on the bladder, urethra and urinary muscles (sphincters). The test shows how well the muscles and nerves in the bladder work with the nerves in the brain and spine. The muscles and nerves must work together while the bladder is filling, storing and emptying urine (pee).Why does my child need the test?
- Your child may be having the test because of:
- Problems urinating, leaking urine or emptying the bladder.
- A planned surgery on the spine. The test is done before and after surgery.
- A possible nerve injury to the bladder.
- Possible injury to the bladder from other problems.
- Spinal cord abnormality.
How is the test done?
The test takes about 90 minutes.
- A small tube called a catheter is put into the urethra. It then goes into the bladder.
- A second tube is put into the opening where poop comes out. The opening is called the rectum or anus.
- Two electrode patches are put next to the rectum and one is put on the leg
- Normal Saline will be put into the bladder through the small tube. When the bladder is full, it will be emptied or your child will be asked to pee before the tube is removed.
- The catheters and electrode patches will be removed at the end of the test.
- Your child may need the test to be repeated.
Will the test hurt?
As the catheter is put in it may feel funny but it should not hurt. You may want to bring something that helps your child feel safe and calm. This could be a special toy or blanket. Please bring distraction items like an iPad, movies, or other items your child enjoys. Pack snacks and a drink as your child may eat and drink during the study. You will be able to stay with your child during the test.
What about the test results?
The results are reviewed by a provider with special training. This doctor is called a urologist. The provider will explain the results to you. This test will show any bladder problems your child may have.
A normal bladder:
- Stretches as much as it can without increased pressure.
- Has muscles that tighten (contract) when a certain pressure is reached. This is what makes a person feel like they have to urinate (pee).
What do I need to do after the test?
There is no special follow-up care for this test. Your child may notice that there is a little blood in the urine or that it burns when urinating. This will go away in 1 to 2 days. If it does not go away, call the doctor, nurse or clinic.