Patient's question:
I was having an NT scan when I was three months pregnant, and the result was 1.2. Then, the test was also normal. If I wait until the 18-24 week to have a structural anomaly scan, I wonder if the fetus would still be abnormal. I have been doing prenatal check-ups since getting pregnant because I am really worried about the baby's health.What kind of help do I need: Can a normal NT result still indicate a malformed fetus?
Doctor's answer:
The hospital conducted an NT value check. This only measures the thickness of the translucent layer in the neck, not major anomaly screening. It is not possible to see if there is spina bifida unless you undergo major anomaly screening. It is essential to have regular prenatal examinations during pregnancy.The NT check is performed by measuring the thickness of the fetal neck translucency to assess whether the fetus has congenital defects, such as gastrointestinal malformations or short-limb deformities. Spina bifida can be confirmed around the 24th week of pregnancy through 4D ultrasound.
You should have the NT check between weeks 10 and 13 of pregnancy, as this is the optimal time. After that, only the NF check can be performed. If the neck translucency exceeds 2.5 millimeters, there is a possibility of Down syndrome, but it is not certain. Follow-up checks are sufficient. Your examination shows that the fetus is developing normally. Timely examination and treatment are recommended, and if necessary, a Down syndrome screening should be performed.