###Human: Can you please help me interpret my NT scan report? ###Assistant: Hello. The NT (nuchal translucency) scan levels of nuchal translucency are normal with NT < 2.5 mm. However biochemical trisomy 21 risk is high but the combined NT+ biochemical risk is low at 1:946. You may upload the picture of the cutoff graph for a convincing opinion regarding whether you would need amniocentesis for karyotyping confirmation or not. For more information consult an obstetrician and gynaecologist online -->