How you prepare for a CT scan depends on which part of your body is being scanned. You may be asked to remove your clothing and wear a hospital gown. You’ll need to remove any metal objects, such as jewelry, that might interfere with image results.

Even faster than an MRI, CT scans take just about 10 to 30 minutes. You will remove jewelry, belts, and other metal objects, and depending upon the part being scanned, you may be asked to change into a gown or robe. During the scan, you’ll usually lie on your back on a flatbed that passes into the CT scanner. The scanner consists of a ring that rotates around a small section of your body as you pass through it. Unlike an MRI scan, the scanner does not surround your whole body at once, so you should not feel claustrophobic. The technician will be operating the scanner from the next room and is immediately available at all times and you will be in full view of the technologist by means of a window during the exam. While the scan is taking place, you will be able to hear and speak to them through an intercom. While each scan is taken, you will need to lie very still and breathe normally to endure that the scanned imaged are not blurred. You may be asked to breathe in, breathe out, or hold your breath at certain points. After the scan, you may resume regular activities.

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