Cystic Fibrosis Carrier Screening

What If I Am a Carrier?

If tests show that you are a carrier of CF, your partner should also be tested. Both parents must be carriers of CF for a child to have the disease. If tests show that your partner is not a carrier of the CF gene, there is a very small chance that you will have a child with CF.

If you and your partner are both carriers of CF there is a 1-in-4 (25%) chance that your child will have CF.³

• If you are not already pregnant, you may wish to have genetic counselling to understand your risks and options if you decide to have children.
• If you are already pregnant, you may wish to have further testing (amniocentesis or chorionic villus sampling) to determine whether your baby has CF.

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Author:	Debby Golonka, MPH Ralph Poore	Last Updated: August 20, 2007
Medical Review:	Michael J. Sexton, MD - Pediatrics Susanna McColley, MD - Pediatric Pulmonology Andrew Swan, MD, CCFP, FCFP - Family Medicine
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