Is Zhengzhou now trying out the non-invasive DNA free policy?

Non-invasive DNA detection is relatively safe, only 5- 10ml of maternal peripheral blood is needed, and there is no risk, and the accuracy rate is as high as 99.99%. Test date: 12-24 weeks. Amniocentesis, invasive puncture sampling, has the risk of oozing blood, infection and abortion rate 1%, and the detection is complicated and the period is long. Test date: 16-2 1 week. The best time for amniocentesis is 16-2 1 week. You have been 22 weeks now, and you have missed the best time for amniotic fluid. It is better to do non-invasive DNA testing with high accuracy. If it shows high risk, it is not too late to choose amniocentesis.