目的:研究随机尿红细胞计数经不同方法校正后与尿红细胞Addis计数的相关性.方法:以1t5例慢性肾脏病患者为研究对象,测定随机尿红细胞/尿比重、随机尿红细胞/渗透压和随机尿红细胞/尿肌酐,并分析它们与3h尿红细胞Addis计数的相关性.结果:随机尿红细胞计数、随机尿红细胞/比重、随机尿红细胞/渗透压和随机尿红细胞/尿肌酐与尿红细胞Ad-dis计数呈正相关(r=0.66、0.66、0.54、0.68,均P＜0.01).当估算肾小球滤过率＜60mL/(min· 1.73m2)、尿比重≤1.012时,随机尿红细胞/尿肌酐与尿红细胞Addis计数的相关性明显提高(r=0.77、0.76,均P＜0.01).结论:随机尿红细胞/尿肌酐能较好地反映尿红细胞排泄量,尤其在低比重尿(尿比重≤1.012)和肾功能减退[(eGFR＜60mL/(min·1.73m2))]时,它是评价尿红细胞排泄率的较好指标.%Objective:To study the correlation between improved random urinary red blood cell count after using different methods of correction and the Addis count of urinary erythrocytes.Methods:The ratios of the random urinary red blood count to the specific gravity,osmolality,and concentration of urinary creatinine in 115 patients with chronic kidney disease were detected,and the correlations between each of them and the Addis count of 3 hours urinary red cells were analyzed.Results:The random urinary red blood count,the ratios of the random urinary red blood count to the specific gravity,osmolality,and the concentration of urinary creatinine were positively correlated with the Addis count of urinary red blood cells,and the correlation coefficients were 0.66,0.66,0.54,0.68,respectively,P＜ 0.01.When the estimated glomerular filtration rate (eGFR) ＜60mL/(min · 1.73m2),the specific gravity of urine≤ 1.012,random urine red blood cell / creatinine and urine red blood cell count of Addis had significant positive correlation,and the correlation coefficients were 0.77,0.76,0.71,respectively,P＜ 0.01.Conclusions:The ratio of the random urinary red blood count to the urinary creatinine is a good indicator to evaluate urinary red blood cell excretion,especially when the specific gravity of urine ≤ 1.012,eGFR＜60mL/(min · 1.73m2).
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