Patient's question:
Now I am 14 weeks pregnant, and a few days ago the doctor asked me to go to the hospital in about a week for a non-invasive DNA test. I don't quite understand it. Could you please tell me where the blood is drawn for a non-invasive DNA test?Doctor's answer:
Non-invasive DNA normal venous blood collection is acceptable. The best time for testing is generally around 13 to 26 weeks of pregnancy, using next-generation sequencing technology to sequence and analyze free gene fragments in maternal peripheral plasma to detect whether the fetus has trisomy 21, trisomy 18, or trisomy 13. It is still necessary to have the check-up done at the hospital.