目的 构建麻醉科新护士掌握桡动脉穿刺置管的学习曲线,为桡动脉穿刺置管技能培训提供参考和依据。方法 选取12名新入职麻醉科护士为研究对象,采用仿真模拟人结合理论授课的培训方式对新护士进行桡动脉穿刺置管技能培训,每人5次为1个学习阶段,共完成4个阶段的技能培训,记录12名麻醉科新护士的操作时间和穿刺置管次数,计算累积和值并绘制学习曲线。结果 个体学习曲线斜率开始为负值的操作次数为10~18次,总体学习曲线自第13次操作起开始为负值。结论 累积求和分析显示麻醉科新护士桡动脉穿刺置管的学习曲线可分为学习阶段和熟练阶段,以13次为临界值,即掌握桡动脉穿刺置管技术最少需完成13次桡动脉穿刺操作。

Objective To construct the learning curve for new nurses in anesthesiology department to master radial artery catheterization. Methods Twelve new anesthesia nurses were recruited and they were trained on radial artery puncture catheter skills through simulation and knowledge learning. Each nurse was trained for 5 times in 4 phases. The operation time and number of catheterizations were recorded. The cumulative summation was calculated and learning curve was drew. Results The slope of the individual learning curve started to be negative from 10 to 18,and the total learning curve started to be negative from the 13th operation. Conclusion The cumulative summation analysis shows that the learning process of radial artery catheterization for new nurses in anesthesiology department could be divided into learning stage and proficient stage. Thirteen were the cut-off point. In other words,nurses need to practice at least 13 times to master the technique of radial artery catheterization.