Does the test result mean that my baby definitely has a chromosome abnormality or a birth defect?
A. No. The blood test is not a conclusive diagnostic test. It is a screening test which identifies women who should be offered further tests because they have a risk greater than that of a 35 year old woman of carrying a baby with a chromosome abnormality. However, it is important to know that other factors can also cause this test result in the mothers blood. Q. How did you determine the chance that my baby may have a chromosome abnormality? A. The AFP and free Beta levels in your blood are compared to the levels expected in women who are at the same stage of pregnancy to determine your risk of carrying a baby with a chromosome abnormality. Q. What can cause this test result in my blood? A. The majority of women with these test results are carrying normal babies. 1) Many women are just not as far along in their pregnancy as originally thought. 2) A less likely cause is a chromosome abnormality in the baby. Q. If the dating of my pregnancy is correct, how can I learn what is causing th
