How Do You Know When To Have A Chorionic Villus Sampling?
A chorionic villus sampling (CVS) is a genetic test performed early in pregnancy to screen for more than two hundred congenital diseases. A CVS, performed 10 to 12 weeks after a woman’s last period, detects genetic abnormalities much earlier than amniocentesis. A prenatal diagnosis of genetic abnormalities is available within one to two weeks after testing. A chorionic villus sampling does not screen for neural tube defects or Rh incompatibility. Read on to learn how to know when to have a chorionic villus sampling. Step 1 Learn more about the risks and benefits of genetic testing when you learn you are pregnant. Decide if genetic testing is right for you and your family. Step 2 Discover the medical history of you and your partner’s family. Investigate if any inherited diseases are present in either of your families’ history. Consider genetic testing if your discoveries cause concern. A CVS test detects Down syndrome and Tay-Sachs disease early in pregnancy. Step 3 Consider genetic tes