When should pregnant women do the glucose screening test?????

Patient's question:

No

Doctor's answer:

The Down syndrome screening is a non-invasive testing method for fetuses, which is cost-effective, simple, and safe, performed between the 14th and 18th weeks of pregnancy. Only 2 milliliters of the pregnant woman's venous blood is required, and the results can be obtained 2 to 3 weeks after blood collection. If the serum screening is positive, further amniocentesis is needed to confirm the diagnosis and determine the appropriate treatment.