| Abstrakt: |
ABSTRACT Twenty‐one patients’ blood samples, each with modified haematocrit concentrations of about 20%, 30%, 40%, 50% and 60%, were assayed for the presence of glucose by two reagent‐strip methods — the Ames Glucometer with BG reagent strips and the Reflolux reflectance meter with BM‐test strips. The reference method was the YSI blood glucose analyser. Both Ames and BM systems were found to have good precision. Ames results were falsely high (mean, 15%) at a haematocrit value of 20% and falsely low (mean, 21%) at a haematocrit value of 60%. BM results also overestimated (mean, 4%) and underestimated (mean, 5%) at the corresponding haematocrit levels. The results showed good agreement between Ames and BM methods and the YSI method for normal haematocrit concentrations of 40% to 50%. Clinicians should be aware of inaccuracies in glucose results by test‐strip methods in patients with abnormal haematocrit concentrations. |
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