What Are Down Syndrome Diagnostic Tests?

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Diagnostic tests are more accurate in detecting Down syndrome and other problems. They are usually performed inside the uterus, and they increase the risk of miscarriage, fetal injury, or preterm labor. Diagnostic tests include:
  • Amniocentesis: At 15 to 20 weeks, a small amount of amniotic fluid is obtained for analysis, using a needle inserted into the abdomen.
  • Chorionic villus sampling: At 8 to 12 weeks, a tiny sample of placenta is obtained for analysis, using a needle inserted into the cervix or the abdomen.
  • Percutaneous umbilical blood sampling: After 20 weeks, a small sample of blood is taken from the umbilical cord for analysis, using a needle inserted into the abdomen.
Down syndrome can also be diagnosed after a baby is born by inspecting the infant's physical characteristics as well as blood and tissue. For more info you can go to a specialist. Keyword: down syndrome diagnostic test
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