First Trimester Screening

First Trimester Screening uses ultrasound to measure an area in the tissue at the back of the developing fetus's neck. This measurement is combined with measurements for two proteins from a blood sample, producing a score that assesses risk for Down syndrome and other chromosomal abnormalities as well as congenital heart defects. Fetuses with structural or genetic abnormalities often accumulate more fluid at the back of the neck during the first trimester, causing this clear space "nuchal translucency" to enlarge. While this is not a definitive diagnosis, it can be helpful in determining whether further invasive diagnostic testing, such as amniocentesis and CVS, are needed. This screening may only be done between 11 weeks one day, and 13 weeks six days of pregnancy.

For more information or to make an appointment please call
1-877-233-WELL (9355).