The NT test does not require an empty stomach or the need to hold urine. The NT test is usually done between 11-13 weeks plus 6 days of pregnancy and is performed by ultrasound to measure the thickness of the subcutaneous hyaline layer in the nuchal area of the baby. The NT test is an ultrasound test that does not require the drawing of venous blood from the pregnant woman, so eating or drinking will not affect the accuracy of the test results and there is no need to fast. In fact, a proper meal before the NT test is more conducive to the baby’s movement in the uterine cavity and to the baby’s cooperation with the test.