Abstract:

Objective　To analyze statistically the accuracy and reliability of a special function for white blood cell （WBC） count in BECKMAN-COULTER LH750 hematology system （LH750）——"WBC Correct" function. Methods　According to the Reference Method for Red Cell and White Cell Counting published by the Ministry of Health， the WBC counts of the samples corrected automatically by machine had been counted manually. The results were analyzed statistically. Results　There was a good correlation for the results by LH750 WBC Correct function and manual counting method， and LH750 WBC Correct function had good accuracy and reliability. There were 5 wrong corrections among 420 samples. Conclusions　The LH750 WBC Correct function is practically significant. However， there are some wrong corrections. Therefore， it should be paid more attention to the correction flags. Manual counting method should be carried on when a wrong correction occurs.

Key words: LH750 automatic hematology system, White blood cell count, White blood cell histogram, ", WBC Correct", ", Cellular interference"