OPTi CCA-TS2 - Page 197

Operator’s Manual – OPTI CCA-TS2 pH-B-5
ANALYTES pH (Dry Sensor)
Correlation to Other Methods
3
OPTI CCA-TS vs other pH Instruments on whole blood in a typical setting
Excess blood aliquots from specimens collected for blood gas analyses were analyzed by both traditional
and non-traditional operators of blood gas equipment in hospital laboratories. The blood 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
OPTI R 0.96 0.27 0.984 0.019 6.78 to 7.54 147
Analyzer A 1.03 0.20 0.968 0.015 7.091 to 7.538 111
* For more information on specic analyzers used, please contact OPTI Medical Technical Support.
OPTI CCA-TS with B-Lac Cassette vs other pH Instruments on whole blood
(in-house testing)
Whole blood samples from multiple donors were tonometered with different %CO
2
gas mixtures to
generate a wide range of pH values. The blood samples were analyzed in parallel on the B-Lac cassette
and other laboratory instruments.
Correlation
Comparative Method* Slope Intercept Correlation
Coefcient
Sy.x Range n
Analyzer B 1.03 -0.21 0.996 0.016 6.578 to 7.766 174
Analyzer C 1.03 -0.19 0.996 0.015 6.582 to 7.701 174
* For more information on specic analyzers used, please contact OPTI Medical Technical Support.