A 56-year-old member asked:
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If you were a carrier of cystic fibrosis, how do you test to see if your unborn child has inherited it?

1 doctor answer
Dr. David Bergman
36 years experience in Maternal-Fetal Medicine
CF: First you need to determine if the father of the baby is also a carrier of the disease as CF is a recessive disease. Therefore both parents need to be carriers and even then there is only a 25% chance the baby is affected. Doing either cvs or amnio can determine if the fetus is affected by cf. If only one parent is a carrier. Screening post natal is recommended.
Answered on Jun 10, 2014

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A 34-year-old member asked:
Dr. Robert Fink
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Yes: Cystic fibrosis carriers do not have any symptoms and frequently there is no known falmily history of cystic fibrosis.
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A 47-year-old member asked:
Dr. William Walsh
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Close to zero: Unless one parent is unfaithful, or there is a spontaneous mutation, it can't happen.
A 43-year-old member asked:
Dr. William Walsh
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Yes: It is a recessive trait, so both have to have the gene to pass it to a child.

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