Patient's question:
Sure, I can help with that. However, you haven't provided any content to translate. Please provide the text you want to be translated into English.Doctor's answer:
Perform the Down syndrome screening, which is a non-invasive test method for the fetus, economical, simple, and safe, conducted between weeks 14-18 of pregnancy. Only 2 milliliters of the pregnant woman's venous blood need to be drawn, and the results can be obtained 2-3 weeks after the blood draw. If the serum screening is positive, further amniocentesis is required to confirm the diagnosis and determine the treatment plan. Down syndrome screening can also detect high-risk pregnant women for neural tube defects, 18 trisomy syndrome, and 13 trisomy syndrome.