中国医疗设备2013，Vol.28Issue(3)：115-117,3.DOI:10.3969/j.issn.1674-1633.2013.03.040
床旁血气分析仪与生化仪测定动静脉血钾浓度差异的检测
Detection of Potassium Difference Between Arterial and Venous Blood Measured by Bedside Blood Gas Analyzer and Automatic Biochemical Analyzer
摘要
Abstract
Objective To explore the difference between blood potassium measured by a bedside blood gas analyzer (Abbott i-STAT) and an automatic biochemical analyzer (ROCHE DDP). Methods In this study, arterial and venous blood samples are collected from 130 patients admitted to the intensive care unit (ICU). The concentrations of potassium and pHs in arterial samples are detected by Abbott i-STAT, while the concentrations of serum potassium in paired venous samples are detected by ROCHE DDP. All samples are divided into three groups. The difference between arterial and venous values are calculated according to different pH groups and made for analysis of variance. Results There is significant difference between results of blood potassium of Abbott i-STAT and ROCHE DDP (P<0.05). Blood potassium measured by the two devices is gradually rising when the pH is decreasing. There is no significant difference of blood potassium under different pH between the two groups. Conclusion The arterial potassium tested by bedside blood gas analyzer could not replace the venous potassium tested by biochemical analyzer, pH can affect the value of blood potassium, but the pH would not enlarge the difference of blood potassium measured by two methods above.关键词
血气分析仪/全自动生化仪/即时检验/血钾/血清钾Key words
blood gas analyzer/ automatic biochemical analyzer/ point of care testing/ blood potassium/ serum potassium分类
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江龙,李鹏..床旁血气分析仪与生化仪测定动静脉血钾浓度差异的检测[J].中国医疗设备,2013,28(3):115-117,3.
