Between 15 and 17 weeks, a pregnant woman gets a blood test to screen for certain birth defects. The numbers thrown at you are mind-numbing. The test itself has at most 80% accuracy in its statistical results. The very limited medical records I received yesterday showed that my birthmother has a 1:200 chance of delivering a baby with Down's Syndrome. I stare at this number and my mind goes blank.
I took the whole thing over to my OB-GYN's office. She was not concerned with the number. She says there are many false positives in normal pregnancies and plenty of normal screens in abnormal pregnancies. She told me to get the sonogram records. The woman at the adoption agency who handles this was out with a family emergency. Lalalala.