What is the fetal nt value? Is it a boy?

NT, or nuchal translucency, refers to the maximum thickness between the skin and subcutaneous soft tissue in the sagittal cross-section of the fetal cervical vertebrae. The nuchal translucency scanner uses B-ultrasound to examine the thickness of the skin on the back of the fetus' neck to assess whether the fetus is likely to have Down syndrome. So how do you determine the NT value, and what is the normal range of the NT value? What is the NT value for a boy?

The question of how much the fetal nt value is to determine whether it is a boy is not established. Since the NT value is the thickness of the nuchal translucency, it is currently mainly used for early screening of Down syndrome and has nothing to do with the gender of the fetus.

NT (Nuchal Translucency Scanner) is a way to assess whether the fetus may have Down syndrome. It is a screening method. Unlike confirmatory tests such as chorionic villus aspiration or amniocentesis, there is a definitive diagnosis, a confirmed karyotype. The ultrasound examination of NT depends on the doctor's diagnostic experience and the sensitivity of the ultrasound equipment. It is a screening test, and the individual results can remind pregnant women to further choose which test is more appropriate.

Nuchal translucency B-ultrasound scanning is usually performed between 11 and 13 weeks and 6 days of pregnancy. Scanning before 11 weeks is technically difficult because the fetus is so small, but after 14 weeks, the excess fluid may be absorbed by the fetus's developing lymphatic system, making the results inaccurate. This type of screening is mainly done by ultrasound scanning, usually done on the abdomen, but it is also necessary to check the position of the fetus and uterus. If necessary, it should be done through vaginal B-ultrasound, which can be seen more clearly.

The nuchal translucency increases relatively with the growth and development of the fetus. B-ultrasound doctors believe that the normal thickness of the fetal nuchal translucency does not exceed 2.5mm, and it is abnormal if the nuchal translucency exceeds 3mm. The thicker the nuchal translucency, the higher the risk of the baby having Down syndrome. If the thickness has reached 6mm, then there is a high risk of Down syndrome and other sex chromosomes, genetic syndromes and heart problems. Pregnant women are advised to do regular prenatal checkups during pregnancy, pay attention to the baby's fetal movements at any time, and go to the hospital's obstetrics and gynecology department in time if there is any abnormality, identify the cause and treat it with medication.