Cystic Fibrosis Carrier Screening

If tests show that you are a carrier of cystic fibrosis (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.

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

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