The answer is "Chorionic Villus sampling".
Chorionic villus sampling (CVS) is a prenatal test in which an example of chorionic villi is expelled from the placenta for testing. The example can be taken through the cervix (transcervical) or the abdominal wall (transabdominal).
Chorionic villus sampling can give data about your child's hereditary makeup. For the most part, chorionic villus examining is offered when the test outcomes may significantly affect the administration of the pregnancy or your longing to proceed with the pregnancy.