According to the Committee of American College of Obstetrics and Gynecology, an international authoritative academic organization, non-invasive prenatal examination is the most widely used technical name. ?
Non-invasive DNA prenatal detection technology only needs to extract the venous blood of pregnant women, and use the new generation DNA sequencing technology to sequence the free DNA fragments (including fetal free DNA) in pregnant women's peripheral plasma, and analyze the biological information of the sequencing results to obtain the genetic information of the fetus, so as to detect whether the fetus has three major chromosome diseases.
Extended data:
When detecting pregnant women in the following situations, the accuracy of detection is reduced to a certain extent, and the detection effect is still unclear; Or according to the relevant regulations, prenatal diagnosis should be suggested. Including:
1, the risk of prenatal screening in early and middle pregnancy is high.
2. The expected date of delivery is ≥35 years old.
3. Severe obesity (body mass index >; 40)。
4. Through in vitro fertilization-embryo transfer.
5. There is a history of fetal delivery with chromosomal abnormalities, except for couples with chromosomal abnormalities.
6. Twin and multiple pregnancies.
7. Other circumstances that the doctor thinks may affect the accuracy of the results.
Baidu Encyclopedia —— Noninvasive DNA Prenatal Detection Technology