Chronic villous sampling (CVS) is a prenatal test that involves taking a sample of placental tissue, called chorionic villi. The chorionic villi holds information on the baby’s genetic makeup.
The sample tissue taken in CVS is used to detect whether a baby has a chromosomal or genetic condition, such as Down’s syndrome or cystic fibrosis respectively.
You might consider CVS if:
CVS is typically performed between 11 - 13 weeks of gestation, and as early as 10 weeks in some cases.
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