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PRO System Comprehensive Resource Guide (GDH-FAD Enzyme) Interference Testing 15
Interference Testing
Interference testing was performed using the concentrations recommended by Clinical and Laboratory Standards
Institute (CLSI) procedure EP7-A2; Interference Testing in Clinical Chemistry; Approved Guideline—Second Edition.
8
Potential interferents were added to whole blood samples at 10 to 50-fold concentrations depending on solubility
characteristics. Where no recommendation was given, the potential interferents were added at concentrations higher than
normal or therapeutic ranges. Blood samples containing each of the potential interferents were tested concurrently with
control blood samples containing no added potential interferents. All blood samples originated from normal healthy donors.
The highlighted interferents below are listed as interferents in the Owner’s Booklet and Test Strip Instructions For Use.
Potential Interferent Normal/Therapeutic
Concentrations
High/Toxic
Concentrations
Concentrations Determined That Will
Affect Meter Glucose Results
Acetaminophen 2.0 mg/dL 30 mg/dL -------
Acetone 2.0 mg/dL 20 mg/dL -------
Ascorbic Acid 1.5 mg/dL 6.0 mg/dL 2 mg/dL
Bilirubin 1.0 mg/dL 15 mg/dL -------
Caffeine 1.25 mg/dL 6.0 mg/dL -------
Cholesterol 150 mg/dL 250 mg/dL -------
Creatinine 1.5 mg/dL 5.0 mg/dL -------
Dopamine 0.03 mg/dL 0.1 mg/dL -------
EDTA 0.1 mg/dL 360 mg/dL -------
Ethanol 150 mg/dL 400 mg/dL -------
Fluoride, Sodium 0.05 mg/dL 429 mg/dL 108 mg/dL
Galactose 5.0 mg/dL 15 mg/dL -------
Gentistic acid 0.4 mg/dL 1.8 mg/dL -------
Glipizide 0.1 mg/dL 0.2 mg/dL -------
Glutathione 0.15 mg/dL 10 mg/dL -------
Hemoglobin 150 mg/dL 1400 mg/dL -------
Heparin, Lithium 0.675 U/mL 31.7 U/mL -------
Heparin, Sodium 0.675 U/mL 31.7 U/mL -------
Ibuprofen 4 mg/dL 50 mg/dL -------
Icodextrin ------- 20 mg/dL -------
L-Dopa 1.3 mg/dL 4.0 mg/dL -------
Maltose 125 mg/dL 250 mg/dL -------
Maltotetraose 30 mg/dL 70 mg/dL -------
Maltotriose 90 mg/dL 180 mg/dL -------
Metformin 0.4 mg/dL 4.0 mg/dL -------
Methyl-Dopa 0.42 mg/dL 1.5 mg/dL -------
Naproxen Sodium 7.5 mg/dL 50 mg/dL -------
PAM 1.0 mg/dL 21 mg/dL -------
Salicylic acid 2.0 mg/dL 70 mg/dL -------
Tetracycline 0.35 mg/dL 1.5 mg/dL -------
Tolazamide 2.5 mg/dL 5.0 mg/dL -------
Tolbutamide 8.1 mg/dL 64 mg/dL -------
Triglyceride 150 mg/dL 1000 mg/dL -------
Uric acid 3 mg/dL 9.0 mg/dL 5 mg/dL
Xylose 5.0 mg/dL 58 mg/dL 7 mg/dL
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