OPTi CCA-TS2 - Page 231

Operator’s Manual – OPTI CCA-TS2 K-5
ANALYTES POTASSIUM
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) 1.0816 -0.138 0.9857 0.13 2.1 to 6.4 103
Analyzer B (whole blood) 1.0225 -0.008 0.9673 0.15 2.4 to 6.0 173
Analyzer C (whole blood) 1.021 ± 0.019 -0.087 ± 0.077 0.9830 0.197 2.3 to 9.4 105
Analyzer D (whole blood) 1.050 ± 0.126 0.062 ± 0.055 0.9879 0.055 2.2 to 9.4 174
Analyzer E (serum) 1.084 -0.315 0.9855 0.181 2.9 to 7.5 68
Analyzer F (serum) 1.126 -0.397 0.9784 0.108 3.0 to 5.4 102
* For more information on specic analyzers used, please contact OPTI Medical Technical Support.