Lac-2 Operator’s Manual – OPTI CCA-TS2
LACTATE ANALYTES
Standard Reference Cassette (SRC) Limit Values
LOW NORMAL HIGH Units
1.00 ± 0.30 2.50 ± 0.50 5.00 ± 0.50 mmol/L
9.0 ± 2.7 22.5 ± 4.5 45.0 ± 4.5 mg/dL
Interferences
The following exogenous interferents were quantied in tonometered whole blood samples spiked with a
number of endogenous and exogenous chemicals and tested for interference following the CLSI guideline
EP7-A2, showing interferences to dyes which typically have short half-lives within the body before being
metabolized by the liver. This testing was done on the OPTI CCA-TS platform, with a standard OPTI
style Lactate sensor. No changes were made to the sensor or the measurement principle, so the
interference of the OPTI CCA-TS2 is equivalent to the OPTI CCA-TS.
Chemical Test level
Concentration
d max Lactate Level
mM
Interference
Acetaminophen 1.66 mM 0.2mM
2 NO
5 NO
Acetylsalicylic acid 3.33 mM 0.2mM
2 NO
5 NO
Ascorbic acid 0.23 mM 0.2mM
2 NO
5 NO
B-Hydroxybutyric acid 16.03 mM 0.2mM
2 NO
5 NO
Bilirubin 0.26 mM 0.2mM
2 NO
5 NO
Cardiogreen 0.0065 mM 0.2mM
2 0.4 mM
5 1.1 mM
Cystein 6.41 mM 0.2mM
2 NO
5 NO
Ethanol 86.8 mM 0.2mM
2 NO
5 NO
Evans blue 0.0104 mM 0.2mM
2 NO
5 NO
Glycolic acid 10 mM 0.2mM
2 1.4 mM
5 1.0 mM
Halothane 0.759 mM 0.2mM
2 NO
5 NO
Ibuprofen 2.43 mM 0.2mM
2 NO
5 NO