Chorionic Villus Sampling (CVS) offers a way to gain definitive chromosomal information about your baby earlier in pregnancy than other diagnostic options. This test can bring clarity and help you make informed decisions about your care path.
What it is
CVS is a diagnostic test, meaning it provides a definitive answer about certain chromosomal conditions, unlike a screening test which only indicates a higher likelihood. It involves taking a small sample of tissue from the placenta, which shares the same genetic makeup as your baby. This sample is then analyzed to identify chromosomal abnormalities. Many parents consider CVS when a prior screening test, such as NIPT, has returned a positive result, or when they simply desire a definitive answer about their baby's chromosomes in the first trimester. It's important to note that while CVS provides comprehensive chromosomal information, it cannot detect neural tube defects, a difference from another diagnostic test, amniocentesis.
