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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
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Be sure to mention the medications you take and ask if it is okay to take them before the test.
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If instructed, stop eating and drinking 8 hours before your CT.
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If instructed, drink contrast (a liquid that improves the image) 8 hours before your CT.
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The test may take 10 minutes to 2 hours, depending on whether contrast is used and the part of the body being scanned.
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Arrive on time to check in.
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When you arrive, you may be asked to change into a hospital gown.
During Your Test
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You may be given contrast through an intravenous (IV) line or by injection.
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You will lie on a table. The table slides into the CT scanner.
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The technologist will ask you to hold your breath for a few seconds during your scan.
After Your Test
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You can go back to your normal diet and activities right away. Any contrast will pass naturally through your body within a day.
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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.
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