Chorionic villus sampling is a prenatal diagnostic test performed for prenatal genetic testing involving a biopsy of placental tissue between 10 to 13 weeks gestation. The tissue harvested is the ...

As the first step in prenatal diagnosis of X-linked genetic disorders, chorionic villus sampling (CVS) for fetal sex determination is generally performed at 11–13 weeks of gestation. However, as the ...

As with amniocentesis, obstetricians may suggest using CVS, short for chorionic villus sampling, to detect genetic disorders such as Down Syndrome. In CVS, specialists perform an ultrasound to ...

This test is usually offered to women who are considered high risk for having babies with genetic disorders such as cystic fibrosis or chromosomal abnormalities. A sample of the cells that line the ...