Coronary Catheterization
Why is the doctor performing this
test?
To determine if there is blockage (plaque build up or atherosclerosis)
within the coronary arteries which reduces the flow of oxygenated
blood to the heart.
What is the test?
A coronary catheterization (also
called a cath or angiogram) is a non-surgical diagnostic
test which allows your doctor to see inside your coronary
(heart) arteries. While taking X-ray pictures, your doctor
will guide a small tube called a catheter inside an artery
to the opening of the coronary arteries and inject an X-ray
dye, allowing him or her to visualize areas of narrowing in
these arteries. If this plaque buildup (also called
atherosclerosis) is left untreated, the heart artery can
become more narrowed or crack, which can result in a heart
attack.
Please view the Coronary
Catheterization Animation for a detailed visual explanation
of this procedure.
Patient Preparation
- Do not eat or drink anything after midnight the night
before your procedure because you need to be fasting for
at least 8 hours.
- Medications should be taken as scheduled unless special
instructions are given. Do not take food or liquids with
your medications. If your medications need to be taken with
food/liquids, discuss your medication schedule for the testing
day with your doctor.
- Be sure to mention to the doctor or nurse if you have
any allergies such as allergies to x-ray dye (contrast).
- Make arrangements with a family member or friend to drive
you home after the procedure--you probably will not be
permitted to drive. Family members and friends can wait
in an assigned area.
- Pack a small bag in case your doctor decides to keep you
overnight in the hospital. You may want to include a robe,
slippers, toiletries, and a book / word games (something
to pass the time).
- Leave money, jewelry, and valuables at home unless a family
member or friend can hold them for you during the procedure.
- Bring a list of all medications you are currently taking.
Your doctor may want to continue them while you recover
from your procedure.
- Tell your doctor if you take aspirin or a blood thinner
because they may need to be stopped several days before
the procedure
Where is the test performed?
In the cardiac cath lab.
How long does this test take?
Approximately 45 minutes to an hour.
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