Patient's question:
What is the prenatal screening for Down syndrome?Doctor's answer:
Analysis of the condition: Hello, the name "Down syndrome screening" implies that it is a prenatal test for screening fetuses with Down syndrome. Experts explain that by testing and analyzing the pregnant woman's blood, it serves as an important indicator for screening for trisomy 21 syndrome in the fetus. The screening results can determine whether the fetus has congenital intellectual disabilities and the risk level of the fetus developing Down syndrome. If the screening results are high-risk, further diagnostic tests such as amniocentesis are required.Advice: Generally, the optimal time for Down syndrome screening is between weeks 15 and 20 of pregnancy. There is no need to fast before the screening; it only involves drawing blood from the periphery of the pregnant woman. Down syndrome screening is related to the menstrual cycle, weight, height, accurate gestational period, and age.