Computed Tomography, also known as CT or a CAT scan, is a type of X-ray
that provides detailed, cross-sectional (sliced) images of the body. A
primary advantage of using CT scans over other types of imaging tests
is that it can be done on all types of body tissue (such as muscle and
bone) without sacrificing clarity.
A special dye, also known as contrast or iodine, may be used during your
exam, to highlight your blood vessels and organs. This will provide more
detailed information to your doctor. Please notify the technologist if
you are allergic to iodine or think you may be. Women should always inform
their doctor or technologist if there is any possibility that they are
pregnant. Before the appointment, check with your physician to see if
lab work is needed.
Preparing for a CT Scan
Wear loose and comfortable clothing with no metal zippers or buttons. Arrive
30 minutes prior to your appointment time to register and complete necessary
paperwork.
If your exam requires a contrast injection, you should not eat or drink
4 hours before exam. If your exam does not require a contrast injection,
there is no prep needed, simply follow your regular daily routine unless
your provider tells you otherwise.
You'll be asked to remove your watch, jewelry, hearing aids, pens, eyeglasses,
and other metal objects. Bring a list of the current medications you are taking.
What to Expect from a CT Scan
Most CT exams take 15 to 30 minutes to complete. Depending on the type
of test you are having, the test may take longer. Please arrive 1 hour
early when having an Abdominal or Pelvic CT. You may be asked to drink
an oral contrast cocktail 1 hour before your exam time. Results will be
sent to the referring physician within 24 to 48 hours.
