Chorionic villus sampling: counseling your patient

Chorionic villus sampling is a technique for prenatal genetic screening that has been widely publicized by the print and television media. Although not yet commonly available, women may seek additional information about the procedure from nurse practitioners. This article discusses the women for whom this procedure is most appropriate, the procedure's accuracy, sampling techniques, safety records and the procedure's accessibility and cost. The NP's role in counseling and anticipatory guidance is also discussed.