chromosomal problems

Is Down Syndrome Tested Before Birth?

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Is Down Syndrome Tested Before Birth? amniocentesis, a prenatal diagnosis method in which a needle is inserted into the amniotic sac that surrounds the fetus. Amniocentesis is most often used to detect Down syndrome and other chromosomal abnormalities. This test is usually done in the second trimester, after 15 weeks of gestation. How do they

What Blood Test Shows Down Syndrome?

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What Blood Test Shows Down Syndrome? Amniocentesis detects most chromosomal disorders, such as Down syndrome, with a high degree of accuracy. What is the Down syndrome blood test called? Nuchal translucency test. Using your age and the results of the blood test and the ultrasound, your doctor or genetic counselor can estimate your risk of