Why get tested?To assess the risk of carrying a fetus with
chromosomal abnormalities, such as
Down syndrome and trisomy 18
When to get tested?Usually between 10 weeks, 4 days and 13 weeks, 6 days of
pregnancySample required?A blood sample drawn from a vein in the arm and a special ultrasound
Note: You may be instructed to have a full bladder when having the nuchal translucency ultrasound performed.