Which test is most often performed at 8 to 11 weeks, and involves inserting a needle (abdominally) or a catheter (cervically) into the substance of the placenta (but staying outside the amniotic sac) and removing 10 to 15 milligrams of tissue, which is cleaned of maternal uterine tissue, and then grown in a culture so that a karyotype can be made?

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Quizplus · Accepted Answer

Chorionic villus sampling (CVS) is the procedure described, which involves taking a sample of tissue from the placenta to test for chromosomal abnormalities and other genetic problems in the fetus.

Which Test Is Most Often Performed at 8 to 11