The cost of NT test after pregnancy is about$120. The NT test after pregnancy is done between 11-14 weeks of pregnancy by ultrasound, which is done to check the thickness of the posterior nuchal translucency and costs about$120 at a tertiary care hospital. Under normal circumstances, the thickness of the NT test should be less than 2.5mm; if it is greater than 2.5mm, especially if it is greater than 3mm, the NT test result is abnormal, too thick, and there is a high possibility that the fetus has neural tube abnormality or chromosomal abnormality. In this case, the patient needs to undergo further non-invasive genetic testing or amniocentesis for confirmation. If the patient is not contraindicated to have an amniocentesis, it is recommended that the patient try to have an amniocentesis, which has a higher accuracy rate.