Chorionic Villus Sampling (CVS)

CVS (Chorionic Villus Sampling)

What Affects the Test

In rare cases, the chorionic villus cells may have abnormal genetic material even though the baby's cells are normal. This is called a false-positive result. An abnormal test result may need to be confirmed by amniocentesis.

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Author:	Sandy Jocoy, RN	Last Updated: May 13, 2008
Medical Review:	Sarah Marshall, MD - Family Medicine Kirtly Jones, MD - Obstetrics and Gynecology
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