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What is a CT scan?
Computed tomography (CT) is an x-ray technique that uses a special scanner and computer to create cross-sectional images of parts of your body (somewhat like slices of bread).
How do I prepare for my CT scan?
Preparation varies depending on the CT exam you are having. You may be given contrast media to drink in order to highlight a certain body area.
It is important that the entire amount of contrast be taken to insure your test is complete. Please do not eat or drink anything after midnight. Medications can be taken.
For CT scans requiring intravenous (IV) contrast:
- Blood work is required prior to procedure
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Intravenous dye may cause warm sensations throughout your body
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Final consideration for IV contrast is dependant upon the radiologist
What can I expect during the CT scan?
When you enter the exam room, you will be asked to lie on the scanner table. A radiologic technologist, who is trained in the use of this specialized equipment, will assist you into the correct position.
The table will then be moved into the scanner's opening to perfectly align the portion of your body to be studied. After each image is taken, the table will advance slightly to scan the next portion. The cross-sectional images are taken by the computer.
As you are moved through the scanner, relax and remain as still as possible. If a scan of your chest or abdomen is being taken, you will be given breathing instructions. This is to avoid any blurring of the image created by breathing movements.
How long will my CT scan take?
The length of your CT scan depends on your needs. The radiologic technologist performing your exam will advise you as to the approximate length of your exam.
What will happen following my CT scan?
You may resume your regular diet and medication schedule immediately after the exam, unless your physician has advised you differently. If contrast fluid is injected, the fluid is eliminated from your body mainly through your kidneys. It is important to drink at least eight (8) ounces of water an hour for the first 3 - 6 hours. This helps your kidneys eliminate the contrast liquid. You will not notice any change in your urine.
How do I find out the results of my CT scan?
Your CT scan will be reviewed by a radiologist. The radiologist will send a report to your physician, who will discuss the results of the scan with you.
IMPORTANT:
- The contrast liquid used contains iodine. If you have an allergy to iodine or have had an allergic reaction to a previous contrast (dye) exam, please tell your physician before having this exam.
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Any woman who is pregnant or suspects she may be pregnant should let her physician know before scheduling this exam.
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