Diagnostic Imaging Department
 

Computed Tomography (C.T. Scan):
Updated July 22, 2009

What is a C.T. (CAT) scan?

A C.T. scan is a medical test done by an x-ray technologist. A C.T. scan can help your doctors diagnose and treat medical conditions.

C.T. imaging uses special x-ray equipment to produce multiple images that show your internal organs, bone, soft tissue, and blood vessels in better detail than regular x-rays.

How do I get ready for my C.T. scan?

You may be asked to take off your hearing aids, dentures, jewelry or hairpins depending on what body part is being scanned.

Do not eat or drink anything for 2 hours before the scan, in case x-ray dye is required.

You must tell your doctor all of the medications you are taking, if you have any allergies, or if you are diabetic.

There is a very small risk of an allergic reaction to the x-ray dye.

If you are taking metformin for your diabetes; you can only book your appointment on Monday, Tuesday, or Wednesday.

If you are having an abdominal and/or pelvic C.T. scan, you may have to drink a contrast agent (telebrix) the night before

the scan, and again one hour before the scan, and a third dose just before the scan.

Arrive 45 minutes before your appointment at the Diagnostic Imaging department (x-ray).

You must pick up the preparation the day before the scan at the Yarmouth, Digby or Shelburne Hospital in the Diagnostic Imaging Department.

You must tell your doctor and technologist if you think you may be pregnant because pregnant women should not have the procedure.

What can I expect during my C.T. scan?

You may be asked to change into a hospital gown and then brought into the scanning room.


















(CT room at Yarmouth Regional Hospital)

You will be lying down on a table, which will move in and out of the C.T. scanner (a large doughnut shaped machine).

You may be asked by the technologist to hold your breath during parts of the scan.

If x-ray dye is needed for your scan, an I.V line will be put into your arm by the technologist, for the injection of the dye. The x-ray dye lets the radiologist (x-ray physician) to see your organs better. It is important that you drink a lot of fluid after your scan to flush the x-ray dye out of your system.

When the x-ray dye is inserted you may get a metallic taste in your mouth, feel warm throughout your body, and feel as though you are wetting yourself; this is a normal feeling and will only last a short time.
How long will my C.T. scan take?

The scan will take 10-30 minutes depending on the area being scanned.


Please note that the technologists are unable to give test results. Your doctor will receive a copy of the report within approximately 1 week. If you have any questions, concerns or if you are unable to keep your appointment, please do not hesitate to call the booking office at 742-2571 or toll free 1-877-742-2571.