OPTIMedical OPTI CCA-TS - Page 194

PCO2-B-4 Operator’s Manual – OPTI CCA-TS
PCO
2
(Dry Sensor) ANALYTES
Correlation to Other Methods
2
OPTI CCA-TS vs other PCO
2
Instrumentsonwholebloodinatypicalsetting
PCO
2
analysis of heparinized whole blood samples was performed at multiple clinical sites. Samples were
analyzed on the OPTI CCA-TS in parallel with laboratory instrumentation operated by hospital personnel
and controlled following the hospital’s established procedures.
ComparativeMethod* Slope Intercept R
2
 Sy.x Range n
OPTI R 0.99 4.15 0.984 3.53 21 – 184 148
Analyzer A 0.94 1.88 0.982 1.62 22.7 – 93.2 112
* For more information on specic analyzers used, please contact OPTI Medical Technical Support.
OPTI CCA-TS with B-Lac Cassette vs other PCO
2
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 PCO
2
values. The blood samples were analyzed in parallel on the B-Lac cassette
and other laboratory instruments.
ComparativeMethod* Slope Intercept R
2
 Sy.x Range n
OPTI CCA (std PCO
2
sensor) 1.00 2.12 0.994 3.52 13 - 196 162
Analyzer B 0.96 1.75 0.986 3.34 13 - 104 153
Analyzer C 1.01 -0.47 0.994 3.74 15 - 198 162
* For more information on specic analyzers used, please contact OPTI Medical Technical Support.
References
1. Tietz, Norbert W., Ed., Clinical Guide to Laboratory Tests, 2nd Ed., (Philadelphia: W.B.Saunders,
Co., 1990) p. 436
.
2. OPTI Medical. Model equation for regression statistics is: [results of OPTI Analyzer] = slope(m)
[comparative method results] + intercept(b).