Computed Tomography (CT) Scan of the Body

Before the CT scan, tell your doctor if you:

• Are or might be pregnant.
• Are breast-feeding. You will need to use formula for 1 to 2 days if you are given dye so that you do not pass the dye to your baby. You should throw out any breast milk you collect during this time.
• Are allergic to any medicines, including iodine dyes.
• Have a heart condition, such as heart failure.
• Have diabetes or take metformin (Glucophage) for your diabetes.
• Have had kidney problems.
• Have asthma.
• Have had thyroid problems.
• Have had multiple myeloma.
• Have had an X-ray test using barium contrast material (such as a barium enema) or have taken a medicine that contains bismuth (such as Pepto-Bismol) in the past 4 days. Barium and bismuth show up on X-ray films and make it hard to see the picture clearly.
• Become very nervous in small spaces. You need to lie still inside the CT scanner, so you may need a medicine (sedative) to help you relax.

Arrange for someone to take you home in case you get a medicine to help you relax (sedative) for the test.

If you have a CT scan of your belly, you may be asked to not eat any solid foods starting the night before your scan. For a CT scan of the belly, you may drink contrast material. For some CT scans, you may need a laxative or an enema before the test.

Talk to your doctor about any concerns you have regarding the need for the test, its risks, how it will be done, or what the results will mean. To help you understand the importance of this test, fill out the medical test information form (What is a PDF document?).