Chorionic Villus Sampling (CVS) is a prenatal test done around the 10th to 13th week to check for certain genetic problems as well as chromosomal abnormalities1. In this test, sample tissue is taken from the small finger-like protrusions on the placenta and sent to a lab for examination. A finger-like protrusion is called the chorionic … Continue reading Pregnant? Learn more about Chorionic Villus Sampling (CVS)