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    Computed Tomography (CT) Scan of the Head and Face

    How To Prepare

    Before the CT scan, tell your doctor if you:

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

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

    How It Is Done

    A CT scan is usually done by a radiology technologist. The pictures are usually read by a radiologist, who writes the report. Other doctors also may review a CT scan.

    You may need to take off any jewelry, glasses, and hearing aids. Wear comfortable, loose-fitting clothes.

    During the test, you will lie on a table that is attached to the CT scanner. Straps will hold your head still, but your face will not be covered.

    The table slides into the round opening of the scanner, and the scanner moves around your body. The table will move while the scanner takes pictures. You may hear a click or buzz as the table and scanner move. It is very important to lie still during the test.

    During the test, you may be alone in the scan room. But the technologist will watch you through a window. You will be able to talk to the technologist through a two-way intercom.

    The test will take about 30 to 60 minutes. Most of this time is spent getting ready for the scan. The actual scan only takes a few seconds.

    WebMD Medical Reference from Healthwise

    Last Updated: September 09, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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