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尿蛋白高的表现

2019-10-25 阅读量:4533次
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正常情况下,人体尿液里不含蛋白质或只含有微量蛋白质,但当肾脏发生病变时,随血液循环流动的蛋白质流经肾脏时,因为肾脏滤过功能的降低而使蛋白质“漏网”。蛋白质漏进尿液从尿道排出来形成了蛋白尿。尿蛋白水平是衡量肾脏功能的重要指标之一。那么,尿蛋白高的表现有哪些?

1.功能性蛋白尿

功能性蛋白尿是一种轻度、暂时性蛋白尿,通常24小时尿蛋白定量在一定范围内,原因去除后蛋白尿可消失。常发生于青壮年,可见于精神紧张、严重受寒或受热、长途行军、强体力劳动、充血性心衰、进食高蛋白饮食后。

2.体位性蛋白尿

清晨尿液无尿蛋白,起床活动后逐渐出现蛋白尿,长时间站立、行走或加强脊柱前凸姿势时,尿蛋白含量可能增多,平卧休息一段时间后尿蛋白含量可能减少或消失,多发生于瘦长体型的青年或成人。反复体位性蛋白尿,需注意鉴别诊断,如胡桃夹现象(又叫左肾静脉压迫综合征,是因主动脉和肠系膜上动脉挤压左肾静脉所致)。

3.病理性蛋白尿

蛋白尿持续存在,尿中蛋白含量较多,尿常规检查可能合并有其他异常。病理性蛋白尿可见于多种肾脏相关疾病。

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2019-10-25

不同原因引起的尿蛋白有什么症状?

2019-10-25

尿蛋白高可能对身体造成的影响

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