Patient's question:
During pregnancy, it is always very uncomfortable, and morning sickness is also very severe. Can I have two Down syndrome screening tests at four and a half months of pregnancy?Doctor's answer:
Hello, the Down syndrome screening is a method that involves drawing pregnant women's serum to detect the concentration of alpha-fetoprotein and human chorionic gonadotropin in the maternal serum, and then calculating the risk coefficient of giving birth to a child with Down syndrome by combining the pregnant woman's due date, age, weight, and gestational age at the time of blood collection. The best time to perform Down syndrome screening is between the 15th and 20th weeks of pregnancy. In your case, you have already passed the optimal time for the test, so it would not be accurate to do the test now. Currently, it is recommended to undergo a 3D ultrasound to check the development of the fetus. If everything is normal, there is generally no need to worry too much.