Question

Nuchal translucency in USG can be detected at_____weeks of gestation.

• A. 11-13 weeks
• B. 18-20 weeks
• C. 8-10 weeks
• D. 20-22 weeks

Answer 1

The Correct Option is A

Nuchal translucency (NT) is a sonographic (ultrasound) measurement used in prenatal screening for chromosomal abnormalities in the fetus, such as Down syndrome. It refers to the fluid-filled space at the back of the fetal neck. The measurement of nuchal translucency is typically performed during the first trimester of pregnancy. According to obstetrical guidelines and practices, NT can be accurately measured during gestational weeks:

11-13 weeks.

This period is chosen because, at this time, the fetal lymphatic system is developing and the fluid accumulation at the back of the neck can be maximal, providing valuable information for screening.

Therefore, based on the options given, the correct answer is 11-13 weeks.