Some pregnant women are found to have low risk of Down syndrome screening during prenatal check ups. At this point, amniocentesis is necessary for final assessment, but some pregnant women are concerned that amniocentesis may cause certain harm to the fetus and are afraid to undergo this examination. So, can Tang screened low-risk sheep pass through?
Amniotic fluid aspiration is a prenatal diagnostic method, which involves extracting some amniotic fluid to check for chromosomal abnormalities in the fetus, as well as abnormalities and genetic diseases. This examination is typically performed between 16-20 weeks.
Amniotic fluid aspiration also carries certain risks for pregnant women, and not all mothers need to undergo this examination. If the mother is over 35 years old, has a high-risk Down syndrome screening result, has a family history of Down syndrome, or has given birth to a malformed child before, amniocentesis is still necessary. If a pregnant woman is found to have low risk and meets the conditions for amniocentesis through Tang screening, in order to give birth to a healthy baby, it is also necessary to undergo amniocentesis for judgment.
But if pregnant women are concerned about amniocentesis, non-invasive DNA testing can also be done. Non invasive DNA has no pain, but the price is higher. But if non-invasive examination is high-risk, amniocentesis is also necessary for diagnosis. As for whether the amniocentesis result will be normal, it can only be known after examination.
