Hay W W, Osberg I M
Clin Chem. 1983 Mar;29(3):558-60.
We evaluated the performance of a blood glucose reflectance colorimeter ("Eyetone," Ames Co.) for accuracy and precision with use of "Dextrostix" (Ames Co.) glucose oxidase reagent strips for blood samples with known and unknown concentrations of glucose covering the usual range of neonatal blood glucose (200-800 mg/L). The meter was calibrated and tested by research nurses and one clinical chemist. Five unknowns were tested for accuracy and precision (56-92 determinations per unknown) and compared with Beckman Astra values (plasma and calculated whole blood). Eyetone/Dextrostix values differed (gave lower values) from the calculated whole-blood values only at concentrations less than 300 mg/L. On 258 clinical specimens from newborn infants, Eyetone/Dextrostix values were not different from calculated whole-blood values (p less than 0.05, r = 0.80). Operator training to develop a consistent procedure was the most critical factor in achieving accurate and precise results.
我们使用“Dextrostix”（艾姆斯公司）葡萄糖氧化酶试剂条，针对已知和未知葡萄糖浓度且涵盖新生儿血糖通常范围（200 - 800毫克/升）的血样，评估了一款血糖反射比色计（“Eyetone”，艾姆斯公司）的准确性和精密度。该血糖仪由研究护士和一名临床化学家进行校准和测试。对五个未知样本进行了准确性和精密度测试（每个未知样本进行56 - 92次测定），并与贝克曼阿斯特拉值（血浆和计算得出的全血值）进行比较。仅在浓度低于300毫克/升时，Eyetone/Dextrostix值与计算得出的全血值存在差异（数值较低）。在来自新生儿的258份临床样本上，Eyetone/Dextrostix值与计算得出的全血值无差异（p小于0.05，r = 0.80）。制定一致操作程序的操作员培训是获得准确和精密结果的最关键因素。
