Pregnant women need to do prenatal check ups on time during pregnancy, and one of the prenatal check ups is amniocentesis. However, not every pregnant woman needs to do amniocentesis. For example, some pregnant women may show a high risk during the Down syndrome screening and often need further examination. This examination is amniocentesis. So, how many weeks can amniocentesis be done?
The time for pregnant women to undergo amniocentesis is approximately between the 17th and 21st weeks of pregnancy. At this time, the fetus is relatively small and the amount of amniotic fluid is relatively large. Performing amniocentesis at this time causes very little harm to the fetus because it will not harm the fetus or affect its growth and development.
In addition, the extracted amniotic fluid contains a large number of live cells. If these live cells can be successfully cultured, it can better understand the condition of the fetus. Before amniocentesis, it is often necessary to perform an ultrasound to determine the position of the fetus and the condition of the placenta. The next step is to disinfect the abdominal skin and then use a specialized needle to extract amniotic fluid.
After the entire process is completed, pregnant friends need to rest for 1-2 hours and wait until they are healthy before being discharged. Due to the fact that the examination report was not issued on the same day, pregnant women can rest assured at home and wait for the examination results before asking the doctor for specific information.
