Patient's question:
I'm going to have a non-invasive DNA test soon. I don't know which department to make an appointment with at the hospital for a non-invasive DNA test? How long does it take to get the results, and is it highly accurate?Doctor's answer:
Non-invasive DNA testing is a non-invasive prenatal screening program that requires an obstetric number. The optimal gestational week for this test is 12-22+6 weeks. The advantages of non-invasive prenatal screening are non-invasive, without increasing the fetal loss rate. Compared to serum biochemical screening, it has higher sensitivity and specificity. For trisomy 21 syndrome, the detection rate is as high as 99% or more, with a low false-positive rate. It should be noted that it is a prenatal screening method, not a prenatal diagnostic method, and cannot replace traditional prenatal diagnostic methods.