Can I do it in the afternoon?

There are many things in the world that are the most inconvenient but necessary to do, one of which is the hospital examination. Most people know that regular visits to the hospital for physical examinations can help prevent unknowing conditions caused by infectious diseases. Many people usually don't go for a check-up. Once they find that they are sick, it is either in the late stage or the advanced stage, and it is too late to regret. Among them, examination of pregnant women is also a more frequent one. NT examination is also included. Is it necessary to do NT in the morning during pregnancy? Can NT be done at noon?

Is it necessary to go to bed in the morning when pregnant?

NT is to check the fetal neck and the thickness of the transparent layer, which is a color Doppler ultrasound. It needs to be scheduled in advance, either in the morning or at noon, but some hospitals do not do this test, so you need to communicate with the hospital in advance to decide whether it is more convenient to do it in the morning or at noon.

Nuchal translucency thickness (NT) NT refers to the maximum thickness of the soft tissue between the skin layer and subcutaneous tissue on the back of the fetus's neck.

The thickness of NT is closely related to chromosomal abnormalities. 10% of people with NT abnormalities have chromosomal abnormalities, mainly sex chromosome aneuploidy, including 21-trisomy, 18-trisomy and x-monopoly (45, X0), as well as 13-trisomy, 15-trisomy, triploidy, etc. Increased NT is also associated with serious non-chromosomal malformations and rare syndromes, such as exencephaly or anencephaly, encephaly, holoprosencephaly, spina bifida, severe heart malformations, some diaphragmatic hernias, omphalocele (after 12 weeks of pregnancy), gastroschisis, polycystic kidney, fetal polycystic kidney, renal coloboma, megabladder, body pedicle abnormalities, fatal skeletal malformations and some musculoskeletal abnormalities, etc. However, it should be noted that about 80% to 90% of fetuses with NT abnormalities are transient diseases, and the final result is normal.

During the early pregnancy and early second trimester, routine physical examinations to check the thickness of the fetal nuchal translucency can not only select chromosomal abnormalities, but also cardiovascular malformations. If the transparent layer is found to be thickened, in addition to the recommendation to check the fetal chromosome karyotype, those with normal karyotype still need to be closely followed up to rule out serious malformations.

Can I do it at noon?

The NT test can be done at noon. The key to the NT test is to do an ultrasound examination of the thickness of the transparent layer behind the child's neck within 11-13 6 weeks. The possibility of deformity can be determined based on the thickness of the transparent layer. NT results below 2.5 are all normal. If it exceeds 2.5, amniocentesis or minimally invasive DNA testing should be done to confirm whether the child has a malformation. The test can be done in the afternoon without fasting. The NT examination has requirements for the part of the child. It is possible that the child's part or posture is not good and the test may not be performed and may need to be repeated. It is recommended to do it in the morning. If the baby's position is not good for the first time, the pregnant woman can move moderately to see if the baby's position can be changed so that the baby can be done. Therefore, it is generally recommended to do it in the morning, and NT test can also be done at noon.