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目的：探讨临床检验中测量不确定度的作用。方法随机性抽取我院2015年1月～7月期间收治的100例患者参与临床研究，采集100例患者的清晨空腹静脉血，进行临床生化检验，测量各项生化指标的不确定度，分析各生化指标不确定度的来源。结果临床检验发现，各种生化指标的不确定度存在一定差异，其中UA（尿酸）的不确定度明显高于其他生化指标（P<0.05）。结论临床检验中对生化指标的不确定度进行测量，有利于临床检验医师明确生化指标检测结果的分散性和客观性。“,”Objective:To explore the role of uncertainty in the measurement of clinical laboratory test.Methods:were collected in our hospital in 2015 January to 9 months were treated 100 cases of patients in clinical study,100 patients of fasting venous blood collection,for clinical biochemical test,uncertainty of the measurement of the biochemical indexes and analysis the biochemical indexes of uncertain origin.Results:the clinical examination showed that there were some differences in the uncertainty of various biochemical indexes,and the uncertainty of UA(uric acid)was significantly higher than other biochemical indexes(P<0.05).Conclusion:the uncertainty of biochemical indexes in clinical examination is helpful for clinical laboratory doctors to identify the dispersion and objectivity of the results.