Oct. 14, 2002 — Measuring nuchal translucency in the early second trimester may be the best single test for fetal trisomy 21 and other chromosomal abnormalities, according to a report in the October ...
If you’re pregnant, your doctor might have mentioned an NT scan or first-trimester screening. An NT scan is a simple test that shows your baby’s risk for some genetic conditions. What Is an NT Scan ...