Abbott CELL-DYN 3200, Руководство оператора системы

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CELL-DYN ® 3200 System Operator’s Manual
9140181H—October 2001
Performance Characteristics and Specifications
Performance Characteristics
Section 4
Typical Paired Difference Precision Normal
The typical paired difference precision of the measured parameters is presented as
the total CV calculated from samples run in duplicate on the same system. (Refer
to Table 4.15.)
Sensitivity and Specificity of WBC Differential Flags
The sensitivity and specificity of the WBC flags were evaluated using the general
principles for morphological classifications outlined in the NCCLS H20-A
Standard: “Reference Leukocyte Differential Count (Proportional) and Evaluation
of Instrumental Methods” as a guideline. The statistics were determined by
comparing the CELL-DYN 3200 System results with results obtained from a
reference CELL-DYN 3500 System. Discrepant results were arbitrated with a
manual, microscopic, 400-cell differential count.
Table 4.15 Typical Precision of Hemogram Parameters
Parameter Number of Pairs Total CV
WBC (WOC) 10 2.01%
RBC 10 0.81%
HGB 10 0.72%
MCV 10 0.38%
RDW 10 1.76%
PLT 10 3.11%
MPV 10 3.68%
%N 10 1.23%
%L 10 2.07%
%M 10 7.72%
%E 10 8.06%
%B 10 16.82%