Computed Tomography (CT) Scan of the Head and Face

CAT Scan, Head and Face, CT (Computed Tomography), Head and Face

Risks

The chance of a CT scan causing a problem is small.

• There is a chance of an allergic reaction to the dye (contrast material).
• If you have diabetes or take metformin (Glucophage), the dye may cause problems. Your doctor will tell you when to stop taking metformin and when to start taking it again after the test so you will not have problems.
• There is a slight chance of developing cancer from having tests that use radiation. The chance is higher in children or people who have many radiation tests. If you are concerned about this risk, talk to your doctor about the amount of radiation this test may give you or your child and confirm the test is needed.

Go to previous section	Go to top of page	Go to next section
Author:	Maria G. Essig, MS, ELS	Last Updated: September 3, 2007
Medical Review:	Paul D. Traughber, MD - Radiology Anne C. Poinier, MD - Internal Medicine Kenneth B. Sutherland, CD, BSc, MD, FRCPC - Diagnostic Radiology
© 1995-2008 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.This information does not replace the advice of a doctor. Healthwise disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.