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A 38-year-old member asked:

Can i do chorionic villus sampling in the first trimester?

2 doctor answers7 doctors weighed in
Dr. Scott Kramer
Gynecology 37 years experience
Yes: Yes usually after 9 weeks. Can also do nuchal cord ultrasound as screen for down's syndrome.
Dr. Amy Herold
A Verified Doctoranswered
A US doctor answeredLearn more
Yes: Chorionic villus sampling (cvs) is done in the first trimester between 10-12 weeks. It has a slightly higher risk of miscarriage associated with it than an amniocentesis- which is usually done after 15 weeks- because it is performed earlier in the pregnancy. Blood tests and a nuchal translucency ultrasound are noninvasive genetic screening options.

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A 46-year-old member asked:

How, when is chorionic villus sampling performed?

1 doctor answer2 doctors weighed in
Dr. Dennis Higginbotham
American Board of Obstetrics and Gynecology 31 years experience
First trimester: Cvs can be performed as early as 9 to 12 weeks of gestation - compared to amniocentesis that is usually done at 1bout 15 weeks.

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Last updated Aug 23, 2012

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