即时检验血糖仪检测指尖血及静脉全血的血糖结果比对分析

The comparison between the blood glucose analysis results using a POCT blood glucose meter with the blood sourced from fingertips and venous whole blood

目的探讨指尖毛细血管血及抗凝静脉全血在即时检验(POCT)血糖仪检测结果的可行性。方法分别采取指尖血及静脉血22例,用POCT血糖仪检测血糖,同时在生化分析仪上检测血浆葡萄糖,对两部位血样检测结果与生化分析仪检测结果的偏倚程度进行比对。结果两部位血样POCT血糖仪检测结果与生化分析仪检测结果比对均为负偏倚,偏倚范围最低为-1.5%,最高为-13.9%,均未大于20%;静脉全血血糖偏倚比指尖血血糖偏倚程度高,两偏倚比较差异有统计学意义(P<0.01)。结论无论采用指尖血还是静脉全血,其POCT结果都可以接受,但采用指尖血样其检测结果更接近血浆葡萄糖。

Objective To discuss the feasibility of the extraction of fingertip capillary blood and venous whole anticoagulation blood by point-of-care testing（POCT）blood glucose meter.Methods 22 cases of fingertip blood and venous blood were taken respectively.POCT glucose meters and biochemical analyzer were used to measure the concentration of plasma glucose simultaneously.The degree of bias of the test results of the two blood samples using two testing methods were compared.Results The results of the two blood test both had a negative bias.The lowest bias of the two results was 1.5%,while the highest bias was 13.9%,with neither to be more than 20%;the bias of venous whole blood glucose was higher than that of blood from fingertips,and there was significant difference in the comparison of the two bias tests（P〈0.01）.Conclusion Regardless of fingertip blood or venous whole blood,the POCT results are acceptable,but the results of fingertip blood test by POCT blood glucose meter is closer to the plasma glucose concentration.