How is a chorionic villus sampling (CVS) test done? What happens during the test?
Genetic counseling is recommended before the test.
An ultrasound will show how far along the embryo is and the location of the placenta. Chorionic villi be taken from the placenta through the vagina (with a speculum and thin plastic tube) or through the abdomen (with a thin needle). The chorionic villi sample will go to a lab, where the cells are grown in a special fluid and tested a few days later. Culture results will be available within 2 weeks. Your doctor will tell you what the results are.
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