What should pregnant women do if their non-invasive dna shows high risk? The test result is high risk, so it is recommended that you follow the doctor's advice and make a prenatal diagnosis review. As a detection method, non-invasive prenatal genetic testing does not belong to prenatal diagnosis and cannot be directly used as the basis for terminating pregnancy. At present, prenatal diagnostic techniques, such as amniocentesis or cord blood puncture, can be used as one of the reasons for terminating pregnancy.
The accuracy of amniocentesis and non-invasive DNA prenatal detection is over 99%. However, the security of these two detection methods is quite different. Traditional amniocentesis, choriocentesis and umbilical vein puncture are all invasive, with certain infection risk and abortion rate, and it takes a long time from detection to result. Compared with these traditional puncture detection methods, the accuracy of non-invasive DNA prenatal detection technology is as high as 99.9%, which has the advantages of no trauma, no risk of abortion, no risk of infection and short cycle. It is the most advanced prenatal testing technology in the world.
Non-invasive prenatal DNA testing is also called non-invasive prenatal DNA testing and non-invasive fetal chromosome aneuploidy testing. 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.
Do you want to do non-invasive DNA or amniocentesis in high wind risk? 1. amniocentesis, also known as amniocentesis? Amniocentesis? , is one of the prenatal examination items. Amniocentesis is used to diagnose whether there are chromosomal abnormalities, neural tube defects and some hereditary metabolic diseases that can be reflected in amniotic fluid. During puncture, puncture needle is used to penetrate the abdominal wall of pregnant women and enter the uterine cavity to suck out a little amniotic fluid, and amniotic fluid cells and biochemical tests are done.
Second, what is non-invasive DNA?
Non-invasive DNA examination is also a means to screen children with Down's syndrome. 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 and detect whether the fetus has three chromosome diseases.
Third, is it risky to do non-invasive DNA or amniocentesis in Tang screening?
Noninvasive DNA is more expensive than amniocentesis. Mainly check the three chromosomes of Down syndrome screening and issue a report and liability insurance. If other chromosomes are found to have problems, they will be informed and the testing institution will pay the sheep puncture fee before amniocentesis. There is no danger and no psychological burden. Amniocentesis is cheaper and has a wider scope of examination, but it has certain risks.
Therefore, if Tang screening results are high-risk, whether to do non-invasive DNA or amniocentesis needs expectant mothers to make the best decision according to their own situation and professional advice from doctors.
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