Antenatal (Prenatal) Testing (Screening)
Antenatal testing, or prenatal diagnostic screening, refers to a variety of testing options available to determine if a fetus has certain abnormalities. Many of the tests are conducted by an obstetrician (OB) as routine prenatal screening, including ultrasound, nuchal translucency screening and testing of a pregnant woman’s blood to help estimate the risk of certain abnormalities. When a test indicates a higher risk, additional tests are available to further analyze the fetus. These additional tests, such as amniocentesis and chronic villus sampling, are often more invasive and have additional risks to the fetus and should be conducted by a maternal-fetal medicine (MFM) specialist.