How accurate is the blood test for Down syndrome?

Related questions

1. How often do hCG levels rise?
2. What do high hCG levels mean?
3. Are hCG levels normal with ectopic?
4. Can HCG level predict gender?
5. What if my hCG levels are rising slowly?
6. Can cancer show a positive pregnancy test?
7. What if your hCG levels are not doubling?
8. Is my hCG level normal?
9. What are hCG levels in molar pregnancy?
10. What does low hCG levels in early pregnancy mean?

Tags

1. #detect
2. #identify
3. #ultrasound
4. #babies
5. #blood
6. #affected
7. #around
8. #about
9. #syndrome
10. #pregnant
11. #between
12. #weeks
13. #together