Pregnant women need to go to the hospital for prenatal check ups every month, and each month's check-up items are different. Pregnant women need to do corresponding check-up items under the guidance of doctors. If there are problems with prenatal check ups, appropriate methods can be taken for treatment and management. Nt is one of the prenatal examination items. So, what is the main purpose of NT during pregnancy?
Nt is a method of determining whether a fetus has Down syndrome by scanning the transparent band behind the fetal neck. The accuracy of this detection is relatively high, but it cannot be guaranteed to be 100% accurate. Babies with Down syndrome may have water accumulation under the skin, so the skin behind the neck will be thicker.
NT examination can not only detect Down syndrome, but also determine the presence of congenital diseases based on the thickness of the skin on the back of the fetal neck. If it cannot be determined, pregnant women also need to undergo prenatal screening, which is to use color ultrasound to check the health of the fetus.
In general, prenatal NT examination is conducted to rule out the possibility of Down syndrome and congenital heart disease in the fetus. If there is a high possibility of Down syndrome in the examination, corresponding amniocentesis examination is also needed. Pregnant women should not be too nervous before prenatal check ups and should pay attention to relaxing themselves.
