动脉置管处改良采血法检测血气分析与APTT的可行性研究

Blood gas analysis and biochemical parameters measurement by using improved blood sampling from arterial catheters: a study of feasibility

目的探讨从肝素维持的动脉置管处采集血标本的方法,避免浪费血液。方法对30例带有动脉测压置管患儿,用常规法(弃含有肝素的血液3mL)和改良法(不弃血)分别先后从动脉置管处采血。结果两组血气分析,生化指标即钾(K+)、钠(Na+)、红细胞压积(Hct)、活化部分凝血活酶时间(APTT)比较,差异无统计学意义(均P>0.05)。结论从以肝素维持的动脉置管中采血,不弃血采血法可以替代常规采血法,检测血气分析、生化指标可行。

Objective To investigate methods for collecting blood samples from heparin-driven arterial catheters, and to avoid waste of blood. Methods A self-control study was conducted in 30 children receiving arterial pressure measurement. Blood samples were collected from heparin-driven arterial catheters by using conventional method that 3 mL of blood containing heparin was discarded and then by using improved method that all blood was conserved for test. Results There were no significant differences in blood gas results, serum potassium （K＋） and sodium （Na＋）, red blood cell hematocrit （Hct）, and activated partial thromboplastin time （APTT） between the two methods （P〉0.05 for all）. Conclusion Blood samples collected from heparin-driven arterial catheters without disposal of blood, can be used to detect blood gas analysis and biochemical parameters.