Chorionic Villus Sampling is an aggressive procedure that is used when there is a family history, or the mother’s age indicates a high risk pregnancy. This test is performed between the 10th and 13th weeks. According to our text, “CVS removes a sample of Chorionic Villi, cells contained in the placenta at the point where it attaches to the uterine wall. The cells are then analyzed for chromosomal and genetic abnormalities”. (Mossler, 2011). CVS is usually performed when there is a high risk of fetal complications (family history, age of the mother) or if the doctor suspects there might be fetal abnormalities. CVS could cause the placenta to separate and also cause infection, miscarriage or premature labor. Chorionic Villus Sampling detects chromosomal abnormalities such as Down Syndrome, Trisomy 13, Trisomy 18, Turner Syndrome, Sickle-cell disease, Cystic Fibrosis, and Tay-Sachs Disease. Slight cramping and light bleeding could occur after the procedure so the mother is to notify her doctor right away. The mother is to avoid heavy lifting, intercourse, and air travel for 2 to 3 days.