Hi M.,
Please let your daughter know that she DOES NOT need to be alarmed if she received a "positive" result for Down's Syndrome, etc from this test. This is an OPTIONAL test (which I was not informed of), and if I were given the choice again, I would not have it done. This test is widely known for giving false positives and causing much unneeded stress on the part of the mother-to-be and any other concerned parties. I was given my results, which showed that my baby was a "high risk" for Downs, and worried about the health of my child for quite awhile until I was able to have a more detailed U/S. Then they told me my baby was perfectly healthy and there was no need to worry.
I don't know your personal feelings on the subject, but I was going to have my baby whether she had Downs or not so if I become pregnant again, this test is NOT one I will be opting for. Besides, you have to be careful of the amniocentesis, which is what they will perform if you get a positive result, since that can actually cause a miscarriage.
I hope this helps, and please DON'T stress if she received a positive result.
Katheryn