CT Scanning
What is a CT Scan?
CT stands for Computerized Tomography, which refers to the
way this exam is performed. In actuality, a CT scan is an X-ray
procedure enhanced by a computer. This results in a cross-sectional
view (referred to as a "slice") of a particular part
of the body.
During a routine X-ray, dense tissues can block other areas,
Aided by the computer, a CT scan is able to put together the
different "slices" and clearly show both bone and
soft tissue.
How do I prepare for the scan?
-
Sinus - No preparation necessary.
-
Brain/ Chest/ Extremities without contrast
- No preparation necessary.
-
Brain/ Chest/ Extremities with contrast
- Nothing by mouth 4 hours prior to the scan. Medications
with a sip of water are allowed.
- Abdomen - Drink the oral contrast 1 hour prior
to your scan. Medication is allowed.
- Abdomen and Pelvis - Drink the oral contrast
2 hours prior to your scan. Medication is allowed.
What will the exam be like?
The CT scanner consists of a large donut-shaped machine and an
X-ray table. You will lie on the table and slowly be moved into
the large opening as a series of pictures are taken, You may be
given an injection of contrast material (dye) which allows better
visibility of specific structures within the body. The technologist
will have you in full view at all times and in communication with
you through intercom.
Contrast material may be necessary and may be given by mouth or
injection or both. In case of an IV contrast injection, you may
feel warm and you might notice a slight metallic taste in your mouth.
This taste is normal and may last only a minute or two. Let the
technologist know immediately if you begin to itch, feel any shortness
of breath, or are otherwise uncomfortable in any way.
Remember:
- Tell your doctor or the technologist if you are pregnant or
think you may be.
- Tell your doctor or the technologist if you are allergic to
iodine or have any other allergies.
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