NT Scan

The NT scan, or Nuchal Translucency scan, is a specialized prenatal ultrasound done between the 11th and 14th week of pregnancy. It measures the clear (translucent) space in the tissue at the back of the baby’s neck. This fluid-filled space is known as nuchal translucency, and measuring it helps assess the baby’s risk of certain genetic conditions.

An increased thickness in this area can be a marker for chromosomal abnormalities such as Down syndrome (Trisomy 21), Edwards syndrome (Trisomy 18), and Patau syndrome (Trisomy 13). The scan is often combined with a blood test (dual marker test) to provide a more accurate risk assessment.

During the procedure, a gel is applied to the mother’s lower abdomen, and a transducer is used to view the fetus. The scan checks the baby’s heartbeat, development, nasal bone, and nuchal translucency thickness.

The NT scan is non-invasive, painless, and safe for both mother and baby. It does not provide a definitive diagnosis but helps identify if further testing like NIPT or amniocentesis may be needed.