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How do I prepare for a computerized tomography (CT) scan?

Brigham and Womens Hospital Team
Administration Specialist
The following are recommended preparations for a computerized tomography (CT) scan:
  • Please do not eat solid foods for four hours prior to your CT appointment. You may drink clear liquids (black coffee/tea, broth, water, or juice) prior to your CT scan. If your exam includes the administration of intravenous (IV) contrast medium, do not drink anything within four hours of your exam (except for small sips of water with your medications.)
  • Please take all regular medications that your doctor has prescribed for you.
  • If you think you may be allergic to IV contrast material or have experienced a prior reaction to IV contrast material, please notify your referring physician prior to scheduling your CT scan appointment.
  • If you have a history of kidney disease or are at risk for kidney disease please notify your referring physician prior to scheduling your CT scan appointment.
  • Patients are encouraged to wear loose, comfortable clothing that does not have any metal buttons, snaps, or zippers. Otherwise you may be asked to change your clothes and wear a hospital gown. It is best to leave all valuables at home. You may be asked to remove any jewelry, dentures, glasses, or any metal objects that may interfere with the CT scan.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.