Laboratory Medicine ›› 2015, Vol. 30 ›› Issue (11): 1074-1077.DOI: 10.3969/j.issn.1673-8640.2015.11.004

• Orginal Article • Previous Articles     Next Articles

Primary investigation on the consistency of red blood cell and white blood cell counts in Shanghai, 2014

WANG Qing, SONG Ying, XU Lei, MIAO Yingbo, ZHU Peichao   

  1. Shanghai Center for Clinical Laboratory, Shanghai 200126, China
  • Received:2015-02-04 Online:2015-11-30 Published:2015-12-03

Abstract: Objective

To study the consistency of red blood cell (RBC) and white blood cell (WBC) counts in Shanghai, and to provide the reference for the appropriate accuracy verification project.

Methods

A total of 2 batches of weak-fixation-treatment whole blood samples were delivered to 710 clinical laboratories in Shanghai. Every laboratory was required to finish the determination within 3 d, with 5 duplicated determination results for each batch. All the determination data were uploaded via internet for statistical analysis within scheduled time.

Results

A total of 693 clinical laboratories, with hematology analyzers (three- and five-classification instruments) spanning 12 brands and 57 models, reported their data of RBC and WBC counts. The coefficient of variation (CV) for RBC of 2 batch samples were 2.06% and 1.99%, respectively. The CV for WBC of 2 batch samples were 4.72% and 4.84%, respectively. The CV of different analyzers for RBC and WBC of 2 batch samples were 0.76%-3.18% and 1.73%-6.32%, respectively, and the means were within 95% confidence interval.

Conclusions

The counting results of RBC and WBC in the clinical laboratories in Shanghai have consistency, and fresh weak-fixation-treatment whole blood sample is acceptable for substituting fresh whole blood in the application of the accuracy verification project for RBC and WBC counts.

Key words: Red blood cell, White blood cell, Whole blood cell counting, Consistency

CLC Number: