An NT scan is a safe, noninvasive test that doesn't cause any harm to you or your baby. Keep in mind that this first trimester screening is recommended, but it's optional.

How do I prepare for a nuchal translucency test?

A nuchal translucency exam does not require much preparation however, it is important to have a full bladder. One hour before the exam, drink 32 oz. of water and do not empty your bladder. You'll be able to empty your bladder as soon as your ultrasound exam is finished.

Is NT ultrasound painful?

You should not feel pain during the procedure. You may feel minor discomfort when the doctor or ultrasound technician presses into your belly. This feeling generally passes quickly. If you are having a blood test as part of the first trimester screening, you may feel a slight pinch from the needle.