NT examination is an essential part of pregnancy testing. By checking the NT value, the specific condition of NT can be examined to determine whether the fetal development is normal. If NT thickening has a certain impact on the fetus, will it cause fetal edema?
NT thickening does not necessarily mean fetal edema. NT thickening indicates an increased likelihood of fetal abnormalities, but it does not necessarily mean fetal edema. NT can be used to screen for fetal abnormalities. If NT detects thickening accompanied by edema, there is a high possibility of fetal abnormalities. Generally, it is recommended that women choose to have an abortion and undergo chromosomal analysis of the fetal tissue after abortion to determine if there is a problem with chromosomal abnormalities and prepare for the next pregnancy.
If the NT examination shows thickening in females, it indicates that the lymphatic return to the fetal neck is obstructed, which can easily increase the rate of fetal malformation. If the NT value is greater than 3mm, further examinations should be performed, usually through amniocentesis to confirm the diagnosis, which will result in more accurate examination results.
Women can undergo NT examination from 11 to 13 weeks of pregnancy. If NT is examined too early, it may not be possible to detect fetal abnormalities as the fetus has not yet developed to a certain level and is relatively small. If NT is examined too late, it may also affect the examination results due to the fetus's large development.
