NT refers to the thickness of translucent tissue in the fetal neck. An NT value of 2.7mm is considered to be on the thick side and needs to be combined with further examination to confirm whether it is serious or not.
NT examination refers to the measurement of the thickness of the subcutaneous tissue of the fetal neck by ultrasound, and it is usually performed during the 11th to 13th week of pregnancy.
Under normal circumstances, the NT value should be less than 2.5mm. If the NT value is 2.7mm, it suggests that the fetus may be at risk of chromosomal disorders. The higher the value, the higher the probability that the fetus will have various malformations.
Further testing of fetal chromosomes is needed when the NT value increases. Chorionic villus can be performed if the gestational week is small, but if the gestational week is already large, amniocentesis is needed to detect fetal malformations and other problems.
If the NT value is 2.7mm, the patient should follow the doctor’s instructions to carry out the pregnancy test, and if there is any abnormality, it is necessary to actively seek medical treatment.