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:__________________
© 2000-2025 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.