Non-invasive DNA test results are only available in low risk and high risk results, there is no medium risk result. Non-invasive ANA is a form of fetal chromosome screening by drawing peripheral blood from a pregnant woman to check the risk of fetal trisomy 21, trisomy 18, and trisomy 13. The results of the test are available in both low risk and high risk results. There is no medium risk result. When a non-invasive DNA test is performed, if the result is low risk, you can continue the pregnancy and just do your labor and delivery tests afterward. If the result is high risk, further amniocentesis is needed to confirm whether the fetus has any abnormalities. If the fetus does have chromosomal abnormalities, the pregnancy needs to be terminated promptly under the guidance of the doctor. Pregnant women should do a good job of regular obstetric examination during pregnancy, and if there is any abnormality, deal with it under the guidance of the doctor.