What is chronic villus sampling (CVS)?
Biopsy of placental tissue between 10-13 weeks gestation. Analyzed for fetal anomalies caused by genetic (chromosomal, metabolic, DNA) disorders. DOES NOT test for NTDs.
Chronic villus sampling (CVS) is a prenatal test that involves removing a small sample of cells from the placenta to test for genetic abnormalities, chromosomal disorders, and other fetal conditions. The procedure is usually performed between 10 and 12 weeks of pregnancy and involves inserting a thin needle or tube through the vagina and cervix or through the abdomen and into the placenta. The cells from the placenta are then analyzed in a laboratory to detect any genetic abnormalities or chromosomal disorders. CVS is considered an invasive procedure and carries a small risk of miscarriage or other complications, so it is usually only recommended for women who have a higher risk of having a fetus with a genetic disorder.
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