According to statistics, there are many cases of newborn disabilities and abnormal intellectual development in the country every year. In recent years, there has been a new prenatal examination called non-invasive prenatal screening, which can screen out fetuses with high incidence rate and serious hereditary or congenital malformations. How many non-invasive prenatal screening are there?
Non invasive prenatal screening includes four tests: early ultrasound examination, NT measurement, screening for thalassemia, and eugenics examination. There is also Down syndrome screening, including early and mid-term Down syndrome screening, systematic ultrasound screening, etc. Non invasive prenatal genetic testing can be used to detect changes in DNA caused by chromosomal abnormalities in fetuses.
Generally, women can undergo non-invasive prenatal check ups after twelve weeks of pregnancy. During the examination, only 5-10 milliliters of blood need to be drawn from the female's body, and the machine observes the pairing and sequencing of genes to diagnose whether there are abnormalities in the fetus's chromosomes. This is relatively simple and efficient.
If a pregnant woman is of advanced age, has a high risk of Down syndrome screening, has placenta previa, placenta previa, or oligohydramnios, she must go to the hospital on time for non-invasive prenatal genetic testing! After rigorous testing, non-invasive prenatal examination has the advantage of accuracy. It is best for pregnant women to undergo prenatal check ups, which can reduce the psychological burden on pregnant women and their families and achieve eugenics.
