NT NB Scan

This scan is performed at the completion of three months of pregnancy. This is the first time a baby is screened for the presence of genetic diseases (Down’s syndrome, Trisomy 13 & 18). It is generally combined with a blood test (double marker test) to confirm a diagnosis. The length of the cervix is also measured in this scan.

The absence of Nasal bone or a thick nuchal translucency (NT) is also a strong indicator of underlying genetic disease. Further Invasive tests like Amniocentesis and CVS are advised to confirm the disease.