CT scans explained

Uploaded by SunnybrookMedia on 13.09.2010

On-screen text: Sunnybrook logo. Having a CT Scan, Sunny View.
Monica Matys [narrator]: Sunnybrook's 4 computerized tomography, or CT scans never stop running, performing
up to 40,000 scans every year. CT scans use
x-rays to make detailed pictures of the area inside your body
being imaged. It's a common test, so what do you need to know if you're having
one? In many cases, you shouldn't eat anything for 3 hours
before your scan, but are encouraged to drink plenty of clear fluid.
This will help your kidneys filter out the iodine-dye or contrast
agent often used to make your inner structures and organs easier
to see. Arrive 15 minutes before your appointment time.
After check in, you'll be asked a number of questions at the nursing station
including your medical history, and any allergies you may have.
At this point, you may need to have bloodwork done to determine how well
your kidneys are working, a process that will delay your scan by
90 minutes. But it's for your own safety, and it advises the
technologist about what form of contrast agent to give you. Next, you'll have
to change into a hospital gown and for some people an IV
is inserted. The technologist will explain the test and position you
properly on the table. The contrast agent is administered through your IV
with this power injector, which streams a consistent volume
into your body over a set period of time. During the test, you may
get a metallic taste in your mouth, or feel like you've just urinated--but don't
worry, that's normal, and will pass. While the preparation
takes some time, the CT scan itself is done in less than 5
minutes, and remember that family members will have to wait in the
waiting room. When your scan is done, you'll be advised to stay on site
for about 15 minutes to make sure you're okay. Drink plenty of
clear fluids for the day following your test, to help clear the contrast agent
from your system. You can now have something to eat, and get back to your
normal activities. Remember: alot some extra time for
delays like needing blood work or even parking your car
If you're pregnant or breastfeeding, make sure to talk to your doctor first.
With Sunnyview, I'm Monica Matys.
On-screen text: Visit our blog at sunnyview.sunnybrook.ca