EPISODE · May 19, 2023 · 0 MIN
体检时尿检为什么要使用中段尿?
from 冷门知识 | 丰富你的知识储备
想必每个人都体检过,在体检的时候有尿检的环节,护士会提醒我们要留中段尿,这是为什么呢?按照排尿的先后顺序,可以把尿液分为前段、中段和后段,尿检使用的中段尿,就是指在排尿过程中处于中间的那一部分尿液。之所以会使用中段尿,是因为相比前段和后段尿,更不容易受污染,才能尽可能保证减少化验的误差。所以在提取尿液时,先排出来一些尿液,有助于清洁尿道口周围,防止尿道口的杂质干扰化验结果。最后一段尿液有可能有膀胱沉渣,故也不收集。对于女性而言,尿检也要尽量避开生理期。
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体检时尿检为什么要使用中段尿?
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