CAT scan is computed axial tomography scan . The procedure uses  a computer to combine several x-ray images to produce cross-sectional and three-dimensional images of internal organs and other structures within the body.
 

 
CAT scans are used to access internal organs. They may be used to detect problems such as the following :

• head – blood clots, tumors, skull fractures and infections
• chest – heart abnormalities, lung abnormalities and infections
• spine – fractures of the vertebra and hibernated intervertebral disk
• abdomen – tumors, abnormal anatomy, appendicitis, cyst and infections

What is the effect of CAT scan on pregnancy ?

 
During a CAT scan, the level of radiation is slightly higher than that of an x-ray. The dose of radiation received during this procedure is about 10 mSv, which is about the same the average person receives from the sun in about 3 years. However, you should note that the benefits of getting an accurate diagnosis far outweighs the risk of exposure.

The American College of Radiology says no single diagnostic x-ray has a radiation dose significant enough to cause problems in a developing embryo.

CAT scans are not generally recommended during pregnancy unless the benefits are far greater than the risks.

However there are some adverse reactions to the dye used for the scan. These include the following :

• hives
• itching
• nausea
• rapid breathing
• difficulty breathing  (rare)

 
It is very important to let your health care provider know that you are pregnant before any medical procedure or test.

Can I breastfeed after a CAT scan ?

 
Breastfeeding moms should wait for about 24 – 48 hours after receiving an injection dye used for CAT scan before resuming nursing. The dye  can pass through the breast milk and get to the baby.
 
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