Amniocentesis is a prenatal diagnostic test offered between 15 -18 weeks of pregnancy to exclude or confirm the presence of chromosomal abnormalities.
Chorionic Villus Sampling
Chorionic villus sampling (CVS) involves taking a small amount of placental tissue (chorionic villi) which has the same genetic information as the fetus for analysis in the laboratory
First Trimester Screening
First trimester screening (nuchal translucency) is a prenatal screening test performed at 11-14 weeks to identify pregnancies at increased risk of Down syndrome (Trisomy 21).