Goff J, Rogers B P
Clin Nurs Res. 1995 Feb;4(1):105-13. doi: 10.1177/105477389500400109.
The purpose of this study was to determine the accuracy of two bedside capillary blood glucose monitors that were being considered for purchase for an adult outpatient clinic. Participants were 101 patients 18 years or older with a diagnosis of diabetes mellitus who were attending medical service outpatient clinics. Participants were randomly assigned to two groups for bedside glucose measurement. Clinic nurses trained for the study did the bedside glucose readings and all venous blood samples were analyzed in the hospital's clinical laboratory. Results of t tests indicate a statistically significant difference between the bedside capillary and venous glucose levels for the total sample (p < or = 0.001). The difference between bedside capillary glucose and venous glucose within monitor groups for bedside capillary glucose and venous glucose was also statistically significant (p < or = 0.001) for both groups. The mean percentage difference between the venous (reference) readings and bedside capillary glucose reading was 8.3% for the Accu-Easy and 12.4% for the Glucometer Encore. This between-monitor group percentage difference was statistically significant (p < or = 0.001). Regression equations generated from patient data then used to predict venous glucose values from bedside capillary glucose values indicate variability in the accuracy of the monitors, especially in the higher ranges, which could result in undertreatment of hyperglycemia.
本研究的目的是确定两种正在考虑为一家成人门诊诊所购买的床边毛细血管血糖监测仪的准确性。参与者为101名18岁及以上诊断为糖尿病且在门诊就诊的患者。参与者被随机分为两组进行床边血糖测量。接受过该研究培训的门诊护士进行床边血糖读数，所有静脉血样本均在医院临床实验室进行分析。t检验结果表明，总样本的床边毛细血管血糖水平与静脉血糖水平之间存在统计学显著差异（p≤0.001）。两组中，床边毛细血管血糖监测仪组内床边毛细血管血糖与静脉血糖之间的差异也具有统计学显著性（p≤0.001）。Accu - Easy血糖仪静脉（参考）读数与床边毛细血管血糖读数的平均百分比差异为8.3%，Glucometer Encore血糖仪为12.4%。这种监测仪组间的百分比差异具有统计学显著性（p≤0.001）。根据患者数据生成的回归方程随后用于从床边毛细血管血糖值预测静脉血糖值，结果表明监测仪的准确性存在差异，尤其是在较高血糖范围，这可能导致高血糖治疗不足。
