Want to go to Shenyang Shengjing for non-invasive dna testing? How about 25 weeks?

Non-invasive DNA is to check the number of fetal chromosomes and pass the maternal peripheral blood test, preferably after placenta formation, that is, after pregnancy 12 weeks. You can check at any time after pregnancy 12 weeks. If you want to know earlier, you can check it earlier. If it is too late, the verification result will be relatively late. For example, after 22 weeks, the non-invasive examination takes 2 weeks, and 24-25 weeks after the results are obtained. There is no way to do puncture for verification. It is better to do it before 20 weeks. Of course, you can do it in 12- 13 weeks. The earlier the time, the more time you have to prepare for other inspections in the future. But it is too early to measure the effective concentration of fetal DNA. Therefore, it is recommended to get pregnant after 12 weeks. Too late sometimes affects the time for further verification of amniocentesis. Patients generally don't need non-invasive DNA examination on an empty stomach, and they can take venous blood of pregnant women for examination at any time. Pregnant women should choose appropriate prenatal check-up items according to their gestational age, and they can have regular prenatal check-ups according to the provisions of the Manual on Maternal and Child Health Care.