Atrial Septal Defect (ASD) Community
About This Community:

WELCOME to the ATRIAL SEPTAL DEFECT COMMUNITY: This Patient-To-Patient Community is for discussions relating to Atrial Septal Defect (ASD) which is a hole in the part of the septum that separates the atria (the upper chambers of the heart). This hole allows oxygen-rich blood from the left atrium to flow into the right atrium instead of flowing into the left ventricle as it should. This means that oxygen-rich blood gets pumped back to the lungs, where it has just been, instead of going to the body.

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What Are the Risks of Cardiac C...

What Are the Risks of Cardiac CT?

Cardiac computed tomography (CT) scans are safe, painless tests. Although cardiac CT uses radiation, the amount is small. This test gives out a radiation dose similar to the amount of radiation you’re naturally exposed to over 3 years. There is a very small chance that cardiac CT will cause cancer.

Some people feel side effects from the contrast dye that’s used during the cardiac CT scan, including the following:

  • An itchy feeling or a rash may appear after the injection of the contrast dye. Neither one normally lasts for a long time, so medicine often isn’t needed. If you do want medicine to relieve these symptoms, you can ask your doctor to prescribe you a medicine called an antihistamine, which is used to help stop allergic reactions.
  • Although rare, it’s possible to have a serious allergic reaction that may lead to breathing difficulties. Medicines are used to treat serious reactions.

People who have asthma or emphysema may have breathing problems during cardiac CT if they’re given beta blockers to slow down their heart rates.


Author/Source: National Heart, Lung & Blood Institute, Division of the National Institutes of Health [NIH]

Retrieved: June 2008

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Start Date
Jun 12, 2008
by jen_from_NY
Last Revision
Jun 12, 2008
by jen_from_NY
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