ABSTRACT
Objective:To evaluate the clinical performance of low-count platelet(PLT) samples for Mindray BC-6800 automatic hematology analyzer and compare the detection results between two sampling mode(automatic injection, manual injection).Methods: To evaluate the repeatability and contamination rate of low-count platelet samples depend on ICHC, CLSI and other standards; to choose 108 blood samples with thrombocytopenia and detect them in two kinds of detection mode (automatic and manual operation), and then evaluate the consistency of low-count PLT samples between the two modes.Results: The results of two detection modes for low-count platelet samples showed there were well repeatability between them. The CV% of those samples which PLT were upon 20×109/L can be assurance within 5% in two modes. The value and fluctuation of SD and range of those samples which PLT were under 20×109/L were smaller; the SD of two modes were 0.5 and 0.8, respectively; and the Range were 1 and 2, respectively. Both of the two modes were less than 1% in carryover rates, high PLT accounts has no influence on low accounts. The correlation coefficient was up to 0.9910 between the two modes by analyzing the 108 blood samples. The results demonstrate there were low deviation and well consistency between the two modes by analyzing medical decision level concentration point for them.Conclusion: Mindray BC-6800 has good clinical performance to detect low-count PLT samples and there are well consistency between automatic and manual operation. Clinical Laboratory chooses which suitable mode to detect samples may depend on self-situation.