neatfreak
Super_Ideal_Rock
- Joined
- Feb 17, 2007
- Messages
- 14,174
Date: 10/7/2008 2:50:17 PM
Author: dreamer_dachsie
NF what is the false positive rate for amnio with genetic testing being done? I thought there were no errors (i.e. really minimal) with the genetic tests? I'm gonna have to look it up.
Errors might be a misnomer, but there are false positives (from what I understand...but I could be wrong, I believe that it happens when the abnormal cells aren't actually from the babies?). Most of the false positives I meant from the earlier screens, making the amnio unnecessary. Even if you get a positive for some of the genetic disorders it doesn't tell you much about how highly functioning your child might be you know? You could have a child with downs syndrome who is so highly functioning that most people don't know. And then again you could have a child who is so debilitated that they can't function.
AND not to mention the fact that these tests only pick up about 50% of babies with downs in the first place it appears, and it is far from perfect...but that might be the earlier screeners and not the amnio. I can't seem to find good information about what you get from each test specifically.
With twins the false positive rate is even higher for the blood tests and amnio results less accurate as a whole. So for *us* it didn't make sense.