A couple attend at nine weeks of a planned pregnancy. Their first child has cystic fibrosis, and both parents are known carriers of the same CFTR variant. They say they have thought about it carefully and want a definite answer about this pregnancy as early as it can safely be obtained. The pregnancy is a singleton and the woman is well. Which one of the following tests should be offered?
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Filed under obstetrics-and-gynaecology › obstetrics › contraception-preconception-and-infertility › prenatal-care and 1 more

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