Browse the corpus

Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.

1 passage

contentuptodate· Content· item f38_13_39123

©2013 UpToDate ® Print Email Chorionic villus sampling (CVS) Chorionic villus sampling (CVS) can be done in one of two ways. The doctor can insert a tube in through the vagina to take the sample of placenta, which is also called the "chorionic villus" (shown on the left); or the doctor can insert a needle straight into the belly (shown on the right). In both cases, the doctor uses ultrasound images to guide where the tube or needle goes.