检验医学 ›› 2015, Vol. 30 ›› Issue (6): 641-645.DOI: 10.3969/j.issn.1673-8640.2015.06.023

• 实验室管理·论著 • 上一篇    下一篇

红细胞和白细胞计数参考方法的实验初探

许蕾, 王青, 缪颖波, 宋颖, 王国飞, 诸佩超, 郭晓俊   

  1. 上海市临床检验中心,上海 200126
  • 收稿日期:2015-10-09 出版日期:2015-06-30 发布日期:2015-07-03
  • 作者简介:null

    作者简介:许 蕾,女,1963年生,主任技师,主要从事临床血液体液学质量控制工作。

  • 基金资助:
    上海市卫生和计划生育委员会资助项目(2013ZYJB0010)

Primary experimental study on the reference method for the counting of red blood cells and white blood cells

XU Lei, WANG Qing, MIAO Yingbo, SONG Ying, WANG Guofei, ZHU Peichao, GUO Xiaojun   

  1. Shanghai Center for Clinical Laboratory, Shanghai 200126, China
  • Received:2015-10-09 Online:2015-06-30 Published:2015-07-03

摘要: 目的

应用红细胞(RBC)和白细胞(WBC)计数参考方法,建立规范的检测平台,为开展血细胞计数正确度验证试验提供技术保障。

方法

按照国际血液学标准化委员会和中华人民共和国卫生行业标准(WS/T 245-2005)RBC和WBC计数参考方法要求,在Z2颗粒计数仪上分别使用S-CAL全血校准品、5C细胞质控品、浓度质控品、弱固定处理的新鲜全血标本和新鲜全血标本进行RBC、WBC等批内批间精密度、重合计数校正、稳定性和仪器间可比性等实验。

结果

RBC、WBC和浓度质控品批内精密度CV<1%,批间精密度符合美国临床实验室标准化委员会(CLSI) H26-A2文件的要求;Z2颗粒计数仪校正RBC和WBC的重合计数偏倚<1%;弱固定处理的新鲜全血标本RBC、WBC大多可稳定5 d以上;BECKMAN-COULTER ACT diff Ⅱ血液分析仪、BECKMAN-COULTER LH-750血液分析仪、SYSMEX K-4500血液分析仪和SYSMEX XE-2100血液分析仪测定RBC、WBC与Z2颗粒计数仪的偏倚分别为≤±2%和≤±4%。

结论

用Z2颗粒计数仪进行RBC和WBC计数的精密度、准确度、重合计数校正和弱固定处理的新鲜全血标本的稳定性均符合要求,与其他厂商的常规血液分析仪检测结果间具有可比性,为进一步开展血细胞计数正确度验证试验提供了技术保障。

关键词: 红细胞, 白细胞, 计数, 参考方法, Z2颗粒计数仪

Abstract: Objective

To investigate the reference method for red blood cell (RBC) and white blood cell (WBC) counts, and to establish standardized determination platform which will provide technical support for blood cell counting trueness verification test.

Methods

The reference method was established according to relevant documents of the International Council for Standardization in Hematology (ICSH) and the standard of the People's Republic of China (WS/T 245-2005). The S-CAL cell calibrator, 5C cell control, aperture instrument concentration control, processed whole blood and fresh whole blood samples were determined on Z2 particle counter. Parameters such as within-run and between-run coefficients of variance (CV), coincidence counting correction, stability and comparability were evaluated.

Results

The method showed that within-run CV was<1%, and between-run CV met the requirements of the Clinical and Laboratory Standards Institute (CLSI) H26-A2. The results demonstrated the biases of coincidence counting correction in RBC and WBC counts were <1%. RBC and WBC of processed fresh whole blood samples were stable after storage for above 5 d. The biases of fresh whole blood RBC and WBC between Z2 particle counter and BECKMAN-COULTER ACT diff Ⅱ, BECKMAN-COULTER LH-750, SYSMEX K-4500, SYSMEX XE-2100 hematology analyzers were ≤±2% and ≤±4%.

Conclusions

The reference method for RBC and WBC counting by Z2 particle counter has been established basically. Precision, coincidence counting correction, accuracy, stability and comparability are conformed to the requirements. It provides the technical support for blood cell counting trueness verification test.

Key words: Red blood cell, White blood cell, Counting, Reference method, Z2 particle counter

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