Performance And Limitations; Operating Ranges; Precision - QBC Diagnostics Star Operators & Service Manual

5 – Performance and Limitations

Operating Ranges

Hematology parameters measured with the QBC STAR system are valid over the following range of values:
Hematocrit
Hemoglobin
Platelet Count
WBC Count
Granulocyte Count
Lymph/Mono Count
Results that fall outside these ranges may be confi rmed by alternate methods.

Precision

Data on typical within-run precision tests on QBC STAR tubes tested in the QBC STAR system are shown in the two tables
below. The precision data represents the analysis of ten whole blood specimens, each assayed in replicates of 10.
HCT (%)
HB (g/dL)
PLT (x 10
WBC (x 10
GRAN (%)
LYMPH/MONO (%)
L–000867(A)
15 – 65%
5.0 – 20.0 g/dL
20 – 999 x 10 /L
9
1.6 – 99.9 x 10 /L
9
0.8 – 70.0 x 10 /L
9
0.8 – 99.9 x 10 /L
9
Whole Blood Total Imprecision
Parameter Mean Value
/L)
9
/L)
9
Parameter Range
38 – 79
21 – 63
Mean %CV
41.7 2.0 %
14.0 1.9 %
235 6.0 %
6.0 6.4 %
Max S. D.
3.2
3.2
5–1