单词 | nuchal translucency test |
释义 | nuchal translucency testnuchal translucency testA method of ultrasound detection of fetuses with a chromosomal abnormality, especially Down's syndrome. The examination consists of the assessment of small collections of fluid at the back of the neck and spine of the fetus that increase translucency. About three-quarters of cases of Down's syndrome can be detected in this way. |
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