OPTi CCA-TS2 - Page 225

Operator’s Manual – OPTI CCA-TS2 Na-5
ANALYTES SODIUM
Correlation to Other Methods
3
OPTI CCA-TS vs other Electrolyte Instruments on Whole Blood and Serum in a typical
setting
Excess blood aliquots from specimens collected for blood gas analyses were analyzed by both traditional
and non-traditional operators of measurement equipment in hospital laboratories. The sample was
analyzed on the OPTI CCA-TS after obtaining the requisite results from existing instrumentation used for
these analyses and operated and controlled following their established procedures.
Correlation
Comparative Method* Slope Intercept Correlation
Coefcient
Sy.x Range n
Analyzer A (whole blood) 0.6500 50.15 0.5721 2.21 126 to 149 103
Analyzer B (whole blood) 0.9313 9.34 0.9180 1.95 129 to 156 173
Analyzer C (whole Blood) 1.084 ± 0.226 -14.929 ± 3.176 0.9784 1.826 128 to 174 105
Analyzer D (whole blood) 1.080 ± 0.021 -6.382 ± 2.855 0.9678 2.007 117 to 163 174
Analyzer E (serum) 0.873 15.49 0.8911 1.77 128 to 149 68
Analyzer F (serum) 1.025 -4.57 0.9376 1.57 127 to 148 102
* For more information on specic analyzers used, please contact OPTI Medical Technical Support.