Yes: Yes usually after 9 weeks. Can also do nuchal cord ultrasound as screen for down's syndrome.
Answered 6/15/2011
6.7k views
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.
Answered 8/23/2012
6.5k views
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