High Risk OB appointment

I got an appointment to see a high risk OB on September 1st. I hear he is one of the best in Houston!!! When asked, he is the one everyone tells me I should see. This appointment would be to test for Down Syndrome and other chromosomal abnormalities. I also hope to discuss my uterus shape more and get more information about it and what it means for me and the baby. Here is a website explaining the test. http://www.babycenter.com/0_nuchal-translucency-screening_118.bc