Should pregnant women do NT first or create a file first?

After the pregnancy is diagnosed, the first color Doppler ultrasound examination should be done about 40 days. Its main purpose is to rule out ectopic pregnancy and confirm that it is a uterine pregnancy. The first comprehensive pregnancy check-up is at 12 weeks of pregnancy. At this time, an NT test is usually required, which is also the first fetal abnormality test after pregnancy. In addition, the health administration department will create a pregnancy check-up file and issue a pregnancy check-up guide. The pregnancy check-up guide will make detailed arrangements for the time items and related contents of the pregnancy check-up. You can go for the pregnancy check-up immediately according to the requirements of the pregnancy check-up guide.

In order to carry out eugenics, it is generally recommended that women should first check B-ultrasound during pregnancy to diagnose intrauterine pregnancy, and also check the fetal heartbeat and fetal heart rate.

Once the B-ultrasound finds the fetal heartbeat and fetal bud in the uterine cavity, you can start the pregnancy check-up. At this time, you need to draw blood for routine blood tests, coagulation function, liver and kidney function, etc. Therefore, pregnant women can create a registration first and then do NT, because the time of NT test is around 11-13 weeks of pregnancy, and the time of registration is usually ten days earlier than the time of NT test, or even earlier.

However, some pregnant women may not register until the third month of pregnancy, so at this time, registration and NT can be performed at the same time.