Chorionic villus sampling (CVS), sometimes called “chorionic villous sampling” (as “villous” is the adjectival form of the word “villus”), is a form of prenatal diagnosis to determine chromosomal or genetic disorders in the fetus. It entails sampling of the chorionic villus (placental tissue) and testing it for chromosomal abnormalities, usually with FISH or PCR.

Although this procedure is mostly associated with testing for Down Syndrome, overall, CVS can detect more than 200 disorders.

Chorionic villus sampling. (2016, September 3). In Wikipedia, The Free Encyclopedia. Retrieved 18:34, September 3, 2016, fromhttps://en.wikipedia.org/w/index.php?title=Chorionic_villus_sampling&oldid=737573609

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