What Tests Are Included in the Nuchal Translucency (NT) Scan During Pregnancy?
Disease description:
I’ve just found out I’m pregnant and heard that an NT scan is required during early pregnancy. Could you please tell me what tests are included in the NT scan?
Doctor's answer (1)
Dr. Zhang Jianhai
The nuchal translucency (NT) scan during pregnancy primarily involves a B-mode ultrasound to measure the thickness of the fetal nuchal translucency. Based on this measurement, the risk of Down syndrome (trisomy 21) in the fetus is estimated. If the NT measurement exceeds 2.5 mm, further diagnostic tests—such as non-invasive prenatal testing (NIPT) or amniocentesis—should be considered to confirm or rule out chromosomal abnormalities.
