Radionuclide cystogram

A radionuclide cystogram is a test (nuclear scan) using radioactive material (radioisotope) that is placed into the bladder. A scanner then detects radioactivity to check bladder and urinary tract functions.

Bladder scan

The specific procedure may vary slightly depending on the reason for the examination (reflux, distention, incomplete emptying, or others).

You will lie on the scanner table. After cleaning the urinary opening, a catheter will be placed into the bladder through the urethra. A solution containing the radioisotope will be instilled into the bladder until the bladder is full (or you indicate that the bladder feels full).

Depending on the suspected problem, the timing of scanning/imaging varies. The bladder may be scanned while full. You may be asked to urinate into a urinal, bedpan, or towels while being scanned.

To test for incomplete bladder emptying, images may be taken with the bladder full, then you will be allowed to get up and urinate into the toilet and return to the scanner. Images are taken immediately after emptying the bladder.

No medication, fasting, or special diets are usually necessary.

A consent form will need to be signed. You will wear a hospital gown. Remove jewelry and metal objects before the scan.

There may be some discomfort during insertion of the catheter. Catheterization and urination in public -- sometimes, when lying on the table -- may be difficult or embarrassing. You cannot feel the radioisotope or the scanning.

After the scan, there may be slight discomfort for 1 or 2 days when you urinate and the urine may be slightly pink. If discomfort persists, fever develops, or if the urine is bright red, notify the health care provider.

This test is performed to evaluate the filling and emptying of the bladder, and to evaluate for reflux of urine or obstruction to the flow of urine.