Serological prenatal screening is a test that pregnant mothers must undergo during pregnancy, with the main purpose of understanding whether the fetus's chromosomes have abnormalities. The accuracy of this screening can reach 80%. But many people think that there is no difference between serological screening and Down syndrome comprehensive screening, so they don't want to do it. So, in fact, is pre serum screening a Down syndrome screening?
There is actually a significant difference between serum pre screening and Down syndrome screening. Because serological prenatal screening is a secret for 14 to 20 weeks of pregnancy. Usually, pregnant women's blood is drawn for testing of chorionic gonadotropin. Then, based on the age of the pregnant woman, computer software is used to detect whether the fetus is at risk of developing major diseases. This serological screening is divided into two stages, one to be completed in early pregnancy and the other in mid pregnancy.
And Down syndrome screening is done by extracting the serum of pregnant mothers and testing for alpha fetoprotein in their serum. Then, doctors will calculate the probability of the fetus in the womb being Down syndrome based on the expected delivery date and individual physical condition of the pregnant woman. Therefore, the purpose of these two examinations is different, so mothers cannot ignore either examination in order to save time or money. Be responsible for the health of unborn babies. Strive to reduce the risk of genetic diseases at birth.
