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什么是蛋白尿? 我们都知道在正常人尿中可含有微量蛋白质,而不含有大量蛋白,这是因为在正常情况下,肾小球基底膜只能通过分子量小于70000物质,故原尿中只含有少量白蛋白(白蛋白的分子量约为69000),经过肾小管时大部分被重新吸收。因此排出的尿蛋白量不超过100mg/日,这是由一般蛋白定性试验不能检出的。可是当某些生理原因、疾病或体位变化时,使肾血循环障碍,肾小球上皮孔隙加大,通透性增强,使尿中蛋白含量增加。当尿中蛋白含量每日超过150mg,则蛋白定性试验即呈阳性反应,
What is proteinuria? We all know that in normal urine can contain trace protein, but does not contain large amounts of protein, because under normal circumstances, the glomerular basement membrane only through molecular weight less than 70,000 substances, so the original urine Contains a small amount of albumin (albumin molecular weight of about 69,000), most of the tubular reabsorption. Therefore, the amount of urinary protein excretion does not exceed 100mg / day, which is undetectable by the general qualitative test of the protein. However, when certain physiological causes, diseases or changes in position, so that renal blood circulation disorders, glomerular epithelial pores, increased permeability, so that increased proteinuria. When the urine protein content of more than 150mg daily, the protein qualitative test that was positive,