小儿经桡动脉采集血气分析3种方法的比较

目的 探讨小儿经桡动脉采集血气分析的不同方法.方法 选取小儿经桡动脉采集血气分析207例,按时间顺序分为3组.A组69例,采用1 ml血气针经小儿桡动脉采集血气分析.B组69例,采用1 ml注射器接5.5号头皮针(以1 ∶ 1 000的肝素抗凝)经小儿桡动脉采集血气分析.C组69例,采用1 ml血气针接无菌技术下将塑料管剪至2 cm的5.5号头皮针经小儿动脉采集血气分析.结果 A组操作针头易滑脱,穿刺成功率低.B组操作由于抗凝剂混合不均匀,易发生凝血.C组操作针头不易滑脱,穿刺成功率高,不易发生凝血,检验结果准确.结论 采用1 ml血气针接剪短的5.5号头皮针经小儿桡动脉采集血气分析,是一种较为理想的方法,值得临床推广.

Comparation of blood gas analysis by three methods of collecting blood through radial artery in children

Objective To discuss the different methods of collecting blood through radial artery in blood gas analysis of children. Methods 207 cases were selected in collecting blood through radial artery in blood gas analysis of children,and they were divided into 3 groups by time,which was called A,B,C. A group was formed by the 69 cases, which was collected blood through radial artery using 1 ml blood-pin. B group was formed by the 69 cases,which was collected blood through radial artery using 1 ml Syringe linking 5.5 scalp needle （ 1 ： l 000 heparin anticoagulant）. C group was formed by the 69 cases,which was collected blood through radial artery using I ml blood-pin linking 5.5 scalp needle in which plastic pipe was cut to 2 cm under aseptic technique. Results The needle was easy to slip in A group,and the puncture was in low success rate.＇As the anticoagulant was mixed uneven~B group was prone to coag- ulation. In C group,the needle was not easy to slip,and the puncture was in high success rate,and was not prone to coagulation, so test results were accurate. Conclusions It is an ideal method to collect children blood through radial artery by 1 ml blood-pin linking 5.5 scalp needle in which plastic pipe is cut to 2 cm under aseptic technique.