Is it dangerous for pregnant women to do amniocentesis? Do pregnant women with abnormal Tang screening results have to have amniocentesis?

There are three results, one is normal, the other is critical risk, and the other is high risk. The latter two conclusions must be further tested by noninvasive DNA or amniocentesis. Generally amniocentesis can only be performed under the condition of high risk of non-invasive DNA. There are many reasons for chromosome variation, and couples with family history are more likely to have chromosome variation. Another situation is that the differentiation period of test-tube embryos in early pregnancy is often exposed to rough harmful substances or radioactive substances in the natural environment, which is very prone to chromosome variation. It's really a pity that this happens, but it's very likely that a baby with chromosome variation will spend a lot of money after birth, so it's not recommended to stay. Naturally, the final conclusion or suggestion is to follow the doctor's advice.

These questions are really heavy. After 7 months of pregnancy, even if the baby is born, the chances of survival are relatively large. At this time, it is extremely difficult to find out that there is a problem and let the family choose to stay or not. But I can't. Face it bravely from beginning to end. I hope it's just a wrong judgment of the hospital outpatient department. Down's screening is a major risk when teasing my mother's sister to have a second child. My sister was in a bad mood these days because she was afraid of what to do with the baby. Fortunately, the later non-invasive DNA proved to be safe. Although it was a false alarm, I was finally relieved after the inspection.

Although Down's screening is normal, Down's screening is only a screening method, and the inspection method is to extract the venous blood of pregnant mothers for component analysis. The accuracy of this inspection method at this stage is only about 60%. Even if the test results are normal, it is not clear whether the baby is difficult at the sex chromosome level. Amniocentesis is to analyze the composition of amniotic fluid from pregnant women's uterus. Amniotic fluid is the natural environment on which babies live, and there are many chemicals belonging to babies, so the test results are much more accurate than those of Tang's screening, and most of them have reached the accuracy of 100%.

Down's screening is only a screening method, and the accuracy rate at this stage is only about 60%. Even if the test results are normal, it is not clear whether the baby is difficult at the sex chromosome level. For this kind of thing, the hospital clinic will generally inform in advance, and the pregnant mother and relatives are informed. Generally speaking, it is because of knowing such a thing that women and their families will have amniocentesis when the screening results of Tang are normal. Down's screening is not available in 200 yuan, and some areas are completely free. Amniocentesis is at least 2000 yuan. If it weren't for the low accuracy of Down's screening (the outpatient department of the geriatric maternity hospital will propose to do amniocentesis directly), who should do amniocentesis with more money? However, this phenomenon is caused by technical limitations at this stage, and pregnant mothers and their families know it, so it will not be "delayed".