Is amniocentesis a navel prick? Amniocentesis is not pricking the navel, but pricking a needle in the belly to suck out the amniotic fluid. Amniocentesis, as its name implies, is to stick a needle into the pregnant mother's stomach and suck out a certain amount of amniotic fluid for testing.
The specific process is as follows: pregnant women need to do B-ultrasound examination first to determine the placenta position and fetal condition to avoid accidental damage to the placenta. After selecting the needle insertion point, disinfect the skin, spread a disinfectant towel, perform local anesthesia, and then use the needle center to vertically pierce with the waist needle at the selected point. When the needle passes through the abdominal wall and uterine wall, it feels frustrated twice. Take out the needle core. Suck out 2 ml amniotic fluid with 2 ml syringe and discard it. This amniotic fluid may contain maternal cells. Then use 20 ml empty needle to suck out 20 ml amniotic fluid, put it into 2 sterilized test tubes, and cover it. Take out the needle, cover it with sterile gauze and press 2? 3 minutes, pregnant women stay in bed for 2 hours.
The best time for prenatal diagnosis is pregnancy 18 ~ 22 weeks. At present, amniocentesis is basically performed under visual B-ultrasound, which is generally safe, but there are still some risks, such as maternal injury, fetal injury, placenta and umbilical cord injury, amniotic fluid leakage, abortion or premature delivery, intrauterine infection, etc., but the proportion is not more than 1/200. Generally speaking, its total risk rate, that is, the risk of fetal abortion, does not exceed 5%- 1%.
The risk of amniocentesis is 1, and the amniocentesis fails. During the operation, expectant mothers may fail for their own reasons, such as abnormal abdomen and uterus, less amniotic fluid in the abdomen and placenta in the front wall.
2, it is difficult to diagnose. Although this operation is very helpful for prenatal diagnosis, due to the limitation of medical technology, various analysis of amniotic fluid may not make accurate prenatal judgment, so this method needs other related items to assist diagnosis.
3. Intrauterine infection. If the expectant mother is likely to be infected before operation or fails to do a good job of cleaning and hygiene in time after amniocentesis, intrauterine infection will occur.
4. Cardiovascular accidents. If pregnant women suffer from cardiovascular and cerebrovascular diseases, cardiovascular and cerebrovascular accidents will occur due to stimulation such as pain or tension during the operation.
5. Amniotic fluid culture failed. Amniotic fluid culture is not 100% successful, and it will be affected by various factors, such as the length of puncture, the abnormality of culture medium, the condition of specimens and so on.
6, pregnant women bleeding and harm to the fetus. The tool used in this operation is a fine needle, which will pierce the amniotic cavity of the expectant mother, which may cause danger to the mother and the fetus in the abdomen, such as female bleeding or even shock, leading to postoperative abortion and endangering the fetus.
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