Patient's question:
Pregnant with 2,？Doctor's answer:
The full name of the Down syndrome screening is "Detailed prenatal screening for Down syndrome." The purpose is to test the mother's serum for alpha-fetoprotein, human chorionic gonadotropin, and free estriol through blood tests, and to combine factors such as the mother's age, weight, and gestational age to estimate the risk coefficient of the fetus suffering from congenital idiocy or neural tube defects. The best time for women to undergo Down syndrome screening during pregnancy is between the 16th and 20th weeks.