Lac-2 Operator’s Manual – OPTI CCA-TS
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 ± 9.0 mg/dL
Interferences
The Lactate sensor response in whole blood is affected by the amount of hemoglobin present in the
sample. The algorithm used to analyze the uorescence data from the Lactate sensor applies a correction
based on the measured total hemoglobin (tHb) value to compensate. Thus the reported lactate value for
the B-Lac cassette has no signicant interference from tHb in the range 5 g/dL to 20 g/dL.
For samples with tHb values greater than 20mg/dL the Lactate value is not reported.
The following substances were tested following the CLSI guideline EP7-A2:
Chemical Test level
Concentration
dmax 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
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