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Computed Tomography (CT)

Computed tomography (CT) is a test that combines x-rays and computer scans. The result is a detailed picture that can show problems with soft tissues (such as the lining of your sinuses), organs (such as your kidneys or lungs), and bones.

 Before Your Test

  • Be sure to mention the medications you take and ask if it is okay to take them before the test.

  • If instructed, stop eating and drinking 4 hours before your CT. You may drink water.

  • You may be instructed, drink contrast (a liquid that improves the image) when you arrive for your CT.

  • With oral contrast, you will need to wait 1 hour before the scan so the contrast can coat the bowels.

  • You will need an IV if IV contrast is used.

  • Arrive 15 minutes prior to the exam.

  • The test may take 10 minutes to 2 hours, depending on whether contrast is used and the part of the body being scanned.

  • When you arrive, you may be asked to change into a hospital gown.

 

CT scan

 

Tell the technologist if:

  • You have allergies or kidney problems

  • You take diabetes medication

  • You are pregnant or think you may be

  • You ate or drank anything before the test

  • You have a Power Port or a Smart Port

During Your Test

  • You may be given contrast through an intravenous (IV) line or by injection.

  • You will lie on a table. The table slides into the CT scanner.

  • The technologist will ask you to hold your breath for a few seconds during your scan.

After Your Test

  • You can go back to your normal diet and activities right away. Any contrast will pass naturally through your body within a day. Drink a lot of water to help clear the contrast from your body, unless you have a health condition that requires limiting fluids.

  • Before leaving, you may need to wait briefly while your images are being reviewed. Your doctor will discuss the test results with you during a follow-up appointment or over the phone.

  • Your next appointment is:__________________

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