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    Cystometry

    Risks

    Cystometry usually does not cause problems. There is always a slight risk of developing a urinary tract infection when a catheter is inserted into the bladder. In rare cases, a bladder infection can spread to a kidney and into the blood, leading to a life-threatening infection. If an infection occurs, it can be treated with antibiotics.

    If you have a high spinal cord injury, you may have low heart rate, high blood pressure, headache, and feel flushed or sweaty during the test. Report these symptoms to the health professional conducting the test, since further testing may cause complications.

    After the test

    After the test, you may need to urinate frequently, with some burning during and after urination for a day or two (especially if carbon dioxide gas was used). Drink lots of fluids to help minimize the burning and to prevent a urinary tract infection.

    A pinkish tinge to the urine is common for several days after cystometry. But call your doctor immediately if:

    • Your urine remains red or you see blood clots after you have urinated several times.
    • You have not been able to urinate 8 hours after the test.
    • You have a fever, chills, or severe pain in your flank or abdomen. These may be signs of a kidney infection.
    • You have symptoms of a urinary tract infection. These symptoms include:
      • Pain or burning upon urination.
      • An urge to urinate frequently, but usually passing only small quantities of urine.
      • Dribbling or leakage of urine.
      • Urine that is reddish or pinkish, foul-smelling, or cloudy.
      • Pain or a feeling of heaviness in the lower abdomen.

    Results

    Cystometry is a test that measures the pressure inside of the bladder camera.gif to see how well the bladder is working.

    Some results may be available right away. Full results are usually available in 1 to 2 days.

    Cystometry 1
    Normal:

    The rate at which urine flows from your bladder when you urinate is normal.

    The amount of urine left in your bladder after you urinate (residual urine volume) is less than 30 milliliters (mL).

    The point at which you first feel the urge to urinate is within the normal range, when the amount of liquid in your bladder is between 175-250 mL.

    The point at which you feel you must urinate is within the normal range, when the amount of liquid in your bladder is between 350-450 mL.

    The maximum amount of liquid your bladder can hold is within the normal range: 400-500 mL.

    Tests of the function of the nerves that control your bladder are normal.

    Urine does not leak from your bladder during the stress test.

    Abnormal:

    The rate at which urine flows from your bladder when you urinate is slower than normal, or your urine stream starts and stops.

    The amount of urine left in your bladder after you urinate (residual urine volume) is more than normal.

    You have trouble starting the flow of urine.

    The point at which you first feel the urge to urinate is more or less than normal or does not occur.

    The maximum amount of liquid your bladder can hold is less than normal or you can't feel it.

    Normal sensations and reactions do not occur when the nerves that control your bladder are tested.

    Urine leaks from your bladder during the stress test.

    WebMD Medical Reference from Healthwise

    Last Updated: September 09, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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