What is cystometrics?

Cystometrics are done to determine the size and functionality (holding and emptying of urine) of your bladder. It measures how much fluid your bladder can hold, how full it is when you begin to feel the need to urinate, the pressure of your urine stream, ability of your bladder to empty and the ability of your bladder to hold urine.

We recommend you having this procedure if you have trouble completely emptying or controlling your bladder.

What can cystometrics show?

Bladder problems, including overactive bladder, reduced bladder capacity, leaking of urine, and inability to completely empty the bladder are symptoms, which are able to be evaluated by cystometrics. Sometimes symptoms are associated with a variety of conditions, such as:

  • urinary tract infection
  • spinal cord injury
  • neurological diseases like multiple sclerosis (MS)
  • stroke
  • diabetes

How is cystometrics performed?

We perform the cystometric study in our office. If you have symptoms of a bladder infection, please let us know, since we do not want to proceed with cystometrics until the bladder infection is treated.

Before the Procedure

Please come in with an almost full bladder for your test.

During the Procedure

Initially you will be instructed to empty your bladder on a special commode so we can record your bladder empties:

  • how long it takes you to start urinating
  • the size and strength of your stream
  • how long it takes to empty your bladder
  • the amount of urine you produce

Cystometrics Cystometrics

Once you have completed the emptying part of the test, the next part will take place while you are lying on your back on an examination table. The skin around your urethra will be cleaned.

A healthcare professional will then insert a catheter (a thin tube) into your urethra and up into your bladder. This sometimes causes a slight burning sensation. The catheter will measure how much urine is still in your bladder.

A second catheter will then be inserted into your vagina or rectum, with electrodes placed in the surrounding area. A cystometer (a tube attached to the catheter) is used to gauge pressure.

Your bladder will be filled with a saline solution and water. You will be asked if you feel fullness, pressure, pain, or an urge to urinate. You may also feel the sensation of coolness or warmth from the liquid. It is possible that your bladder may leak a little during the procedure. This is normal.

As your bladder fills, we will ask you to report when you begin to feel an urge to urinate. After your bladder is full, you will urinate while the pressure of your urine stream is recorded.

At this point the catheter will be withdrawn almost all the way to record the pressures in your bladder, neck of your bladder and urethra. Any fluid still in your bladder will be drained and the catheters will be withdrawn.

The entire procedure will take about 15 to 30 minutes to complete.Once the test is done a report will be generated and reviewed. At your follow up appointment the findings will be discussed and a treatment plan made.

After the Procedure

You may have some discomfort during urination for a few days, and your urine might contain small amounts of blood. Urinary tract infection is also reported in some patients. If you experience fever, chills, excessive bleeding, or increasing pain, this may be a sign of infection and you should contact us immediately at (509) 628-8866.