NT examination during pregnancy is an important prenatal examination that can determine whether the fetus has congenital chromosomal abnormalities or developmental abnormalities. However, this examination can only be performed at an appropriate gestational age after pregnancy. Can NT examination be performed at 83 days of pregnancy?
The optimal time for women to undergo NT examination after pregnancy is between 77 days and 98 days, which is from the 11th week to 13+6 weeks. Therefore, within this time range of 83 days of pregnancy, NT examination can be performed. The nt value is obtained through ultrasound detection. If the thickness exceeds the relative reference value, the higher the risk of fetal chromosomal diseases.
The NT value for this examination should not exceed 2.5 centimeters. If the examination results indicate thickening of the NT, further prenatal diagnosis can be conducted within 24 hours after the examination. It is recommended to perform early Tang screening through blood sampling. Combined screening can make the diagnostic results more accurate.
In addition, pregnant women need to undergo four-dimensional ultrasound examination during the mid pregnancy period, which is from 20 to 24 weeks. This is also an important examination to check whether the fetus has developmental abnormalities in limbs and internal organs. Therefore, pregnant women must not miss the examination and should actively undergo prenatal examinations according to the prescribed gestational age.
