What is the Down Syndrome Screening

Patient's question:

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Doctor's answer:

The Down syndrome screening is a method that involves drawing pregnant women's blood serum to detect the concentrations of alpha-fetoprotein, human chorionic gonadotropin, and free estriol in the maternal serum. By combining the pregnant woman's due date, weight, age, and gestational age at the time of blood collection, it calculates the risk factor for giving birth to a fetus with congenital defects.