Patient's question:
Sure, here is the translation of the content you provided:No
Since you mentioned that "，", I have kept the line breaks as they are. If you have any more content to translate, please let me know!
Doctor's answer:
It is to check the thickness of the fetal nuchal translucency, commonly used for prenatal screening, which can diagnose chromosomal diseases and early detect various causes of fetal abnormalities. If it exceeds 3mm, it often suggests adverse conditions.