Evaluation of hematology analyzers by verification tests

Objective To evaluate the veracity and consistency of the results obtained from several automated hematology analyzers by valid analysing range. Methods Anticoagulative peripheral blood and QC blood were determined by one automated hematology analyzer with best performance as reference analyzer and other ones respectively. The precisions and complete blood count results were compared with those among automated hematology analyzers by relative bias and valid analysing range. Results Compared with the results of KX-21N, the results by CD-1700 and Celltac F showed excellent consistency, the results of HCT and RBC showed difference by Pentra 120, HCT showed difference by CD-1600 and Celltac α, respectively. Valid analysing range, compared with relative bias, was better effective in evaluation of hematology analyzer. Conclusions Valid analysing range joined with precision is of better effective in evaluation of hematology analyzer.