A member asked:

My wife had a cat scan last week and we didn't know she was 5 weeks pregnant. do you think it will affect the child?

4 doctors weighed in across 2 answers

No, I don't : The radiation to the embryo would depend on what part of the body was scanned and other technical factors. However, the amount of radiation received by the embryo, even if the pelvis was directly scanned, will usually be less than 2000 millirads. This is less than the amount considered harmful to a pregnancy. Obstet gynecol 2004;104:647– 651.

Answered 7/31/2013

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Dr. Joseph Accurso answered

Specializes in Radiology

Very unlikely, but: Please contact your doctor and request a fetal dose estimate. A radiation safety officer or medical physicist can look at the specifics of the case, including ct dose and area scanned, age of the pregnancy, etc and get a quite accurate measure of the dose to the embryo/fetus. Then you can have an informed discussion about the potential risks.

Answered 8/17/2013

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