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作 者:孙慧颖[1] 陈宝荣[1] 邵燕[1] 胡滨[1] 李月玲[1] 陈燕[2] 郭鸿雁[3] 贺建勋[4] 鲁辛辛[5] 邱玲[6] 邱爽[7] 吴继明[8] 王玫[9] 王清涛[10] 肖路延[11]
机构地区:[1]北京航天总医院检验科,北京100076 [2]首都医科大学附属北京天坛医院检验科,北京100050 [3]首都医科大学附属北京佑安医院检验科,北京100069 [4]首都医科大学附属北京安贞医院检验科,北京100029 [5]北京同仁医院/南院检验科,北京100730 [6]中国医学科学院北京协和医院检验科,北京100730 [7]北京积水潭医院检验科,北京100035 [8]中国中医科学院广安门医院检验科,北京100053 [9]中日友好医院检验科,北京100029 [10]首都医科大学附属北京朝阳医院检验科,北京100020 [11]卫生部北京医院检验科,北京100730
出 处:《临床检验杂志》2013年第6期459-463,共5页Chinese Journal of Clinical Laboratory Science
基 金:国家基础平台建设资助项目(PT-0719);国家科技支撑计划资助项目(2007BAI05B09);首都医学发展基金资助项目(2007-1045)
摘 要:目的了解北京市各临床实验室γ-谷氨酰基转移酶(GGT)、肌酸激酶(CK)、乳酸脱氢酶(LDH)及α-淀粉酶(α-AMY)常规测量系统测量结果的正确度。方法用北京市12家大型临床实验室GGT、CK、LDH及α-AMY常规测量系统分别测量2个活性水平的人血清基质国家二级标准物质,以标准物质"认定值±不确定度"及En值为标准评价测量结果的正确度。结果2个活性水平的标准物质,GGT测量结果范围分别为89.5~119.3 U/L、169.6~214.3 U/L;CK测量结果范围分别为197.0~224.7 U/L、372.0~446.7 U/L;LDH测量结果范围分别为169.0~225.7 U/L、260.7~372.0 U/L;α-AMY测量结果范围分别为40.0~69.3 U/L、162.3~271.0 U/L;GGT、CK、LDH及α-AMY常规测量系统测量结果满足正确度标准要求的实验室比例分别为8%(1/12)、33%(4/12)、18%(2/11)和10%(1/9)。结论北京市临床实验室大部分GGT、CK、LDH及α-AMY常规测量系统测量结果的正确度不能满足量值溯源要求。Objective To survey the trueness of the measurement results of γ-glutamyl transferase ( GGT), creatine kinase ( CK), lactate dehydrogenase (LDH) and α-amylase (α-AMY) measured by routine measurement system in the clinical laboratories of Beijing area. Methods The national secondary standard reference materials prepared with human serum matrix of two active levels were measured in 12 different clinical laboratories by using routine measurement system respectively. The trueness of measurement results was evaluated by both of uncertainty on certified value of standard materials and En value. Results For the two active levels of national standard materials, the measurement results were as follows. GGT: 89.5 to 119.3 U/L and 169.6 to 214.3 U/L, CK: 197.0 to 224.7 U/L and 372.0 to 446.7 U/L, LDH: 169.0 to 225.7 U/L and 260.7 to 372.0 U/L, α-AMY: 40.0 to 69.3 U/L and 162.3 to 271.0 U/L. The percentages of laboratories in which the trueness of measued results met the requirement of criterions for GGT, CK, LDH and α-AMY were 8% (1/12), 33% (4/12), 18% (2/11) and 10% (1/9) respectively. Conclusion In Beijing area, the trueness of measured results of GGT, CK, LDH and α-Amy in most laboratories can not meet the requirements of measurement traceability.
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