Patient's question:
Hello, what are the differences between NT and Down syndrome screening? If I had an NT ultrasound done earlier and will have a Down syndrome screening later, do I still need to have an ultrasound?Doctor's answer:
According to the situation you described, NT check and Down syndrome screening are two completely different tests. Down syndrome screening primarily focuses on assessing the possibility of having a child with Down syndrome through screening. However, the NT check in early pregnancy needs to be performed between 12-13 weeks of pregnancy, while Down syndrome screening is conducted between 15-20 weeks of pregnancy. You can go to the hospital to undergo the test based on your pregnancy duration. Pay more attention to rest during pregnancy, eat more nuts to enhance comprehensive nutrition during pregnancy, and avoid irregular visits to the hospital for antenatal dynamic observation of fetal growth and development. Between 22-26 weeks of pregnancy, a four-dimensional color Doppler ultrasound should be performed to rule out the possibility of fetal developmental abnormalities.