What should I do if all three items of Tang screen are high risk?

If Tang screen is abnormal results, it is necessary to do further examination in time to rule out the possibility of fetal malformations. For example, to do non-invasive DNA test or amniotic fluid puncture, etc., the results of these tests are more accurate. If still abnormal, it is necessary to consider timely termination of pregnancy, if it is normal results do not worry, do regular prenatal examination.