A cystometrogram allows us to assess how your bladder
and sphincter behave while you store urine and when you pass urine. This
test is done for people with urinary incontinence, people who have difficulty
with urination, and in people with neurologic diseases that can affect
bladder function. This test will measure your bladder capacity and pressure.
By doing this we can identify problems such as a small capacity bladder,
overactive bladder or high pressure bladder.
This test will take about
15-20 minutes. You will be positioned on an exam table lying on your
back; or if you use a wheelchair that reclines,
the study can be performed while you remain in your wheelchair. Your
urethral opening will be cleansed with betadine to eliminate any bacteria
on the surface. A catheter with a sensor will be inserted into your urethra
and advanced into the bladder. The bladder will be filled with saline
solution and filling pressures will be recorded. We will ask you to report
any sensations that you might have --coolness from the saline fluid,
fullness, the need to urinate, urgency, pain, etc. You may experience
some urine leakage during the study. Don’t be embarrassed because
this can be expected. If you do have leakage, tell the technician who
is doing the test.
You may experience a sense of burning or pressure when the catheter
is inserted into the urethra. It is normal to have some irritation when
you urinate for 24-48 hours after the study. You may also note a small
amount of blood in the urine. You will be given an antibiotic prior to
the procedure, to guard against infection.
If you are being seen for urinary retention, we will ask you to empty
your bladder at the end of the test. Measuring the bladder pressure during
urination will help us identify the problem so that we can prescribe
You do not have to do anything special to prepare for this study. You
can eat and drink as you normally would before you arrive to the clinic.
This test is done in the clinic and does not require sedation or anesthesia.
You may resume your usual daily activities immediately following the
Call the clinic nurse if you develop a fever of 100.5 degrees Fahrenheit
or higher, have chills, persistent bleeding, or cannot urinate.
Revised by Jerilyn M. Latini, MD , Deborah Crider, NP,
Charlene Neer, RN and Dawna D. Allore, RN., May 2006