Women need to undergo some relevant examinations after pregnancy, which is also a detailed examination of whether the baby is growing and developing normally. With the advancement of technology, many detailed inspections can now be performed using instruments. However, due to the large number of examination items, pregnant women also have some doubts. Is it necessary to perform non-invasive amniocentesis on Tang screen?
If the risk of Down syndrome screening is high at 16 weeks of pregnancy, it is generally recommended to undergo amniocentesis, also known as amniocentesis. Sheep wearing surgery is also suitable for pregnant women over 35 years old before delivery, or for pregnant women with congenital defects or chromosomal abnormalities. Amniotic membrane puncture surgery is mainly used for prenatal diagnosis in mid pregnancy. Can be used for fetal chromosome karyotyping analysis.
Under ultrasound localization, a small amount of amniotic fluid can be extracted for fetal cell culture. At present, this technology is also very mature and relatively safe. Overall, the risk of this surgery is relatively low, less than 1/200. The optimal time for prenatal diagnosis of amniocentesis is between 16-24 weeks.
There are many examination items during pregnancy, and pregnant women should undergo relevant examinations within the prescribed time to check the development and growth of the baby. If any problems occur, corresponding measures and remedies can be taken in a timely manner. If you have any questions about the examination items, you can consult a doctor at the hospital, who will provide very professional answers.
