通常用尿中的红细胞染色观察法及非染色位相显微镜观察法等来诊断尿中的血尿以其达到肾性血尿的定位诊断。实践证明:以上方法都只对少数红细胞进行观察,其结论与观察者的经验直接相关。因此,有时结果不可靠。本方法用红细胞容积而幅度(RDW)曲线来诊断血尿,方法简单、迅速,而且 Urinary red blood cell staining observation and non-staining phase microscope observation are usually used to diagnose the hematuria in the urine to diagnose the location of renal hematuria. Practice has proved that: The above methods are only a small number of red blood cells were observed, the conclusion is directly related to the experience of the observer. Therefore, sometimes the result is not reliable. This method uses the red blood cell volume and amplitude (RDW) curve to diagnose hematuria, the method is simple and rapid, and