Can a 20 week Anatomy ultrasound pick up down syndrome in the baby? I have an increased risk of a 1 in 89 chance of having my baby born with DS

Didn't you ask this? Your risk assessment was obsolete, Ultrasound detection of Down at 20 weeks misses many. Demand a test of freei fetal DNA in your blood sample--your PCP can order the Harmony test from Ariosa: call 1-855-9-ARIOSA (855-927-4672) In over 15,000 pregnancies they detected 100% of Down syndrome and the chance of a false positive was less than 1 in 1000. Results in 4 to 8 days.