She reaches for the drugs, her movements quick but confident. She quickly fills a hypodermic needle with morphine, and then ties a piece of cloth around her upper arm to find the vein.
里面有一个专门储存麻醉剂的区域，Sara伸手拿起麻醉剂，接着迅速地将麻药抽入注射针管，然后用一块布带绕系在她的上臂，找到静脉，她的动作显得麻利而熟练。
The author summarized psychological factors in nurses for vein puncture, such as nervousness, lack of faith in their ability, unstable morale and being overanxious for quick results.
作者总结了护理人员因紧张、信心不足、不稳定情绪，急于求成的心理因素对静脉穿刺的影响。
The author summarized psychological factors in nurses for vein puncture, such as nervousness, lack of faith in their ability, unstable morale and being overanxious for quick results.
作者总结了护理人员因紧张、信心不足、不稳定情绪，急于求成的心理因素对静脉穿刺的影响。
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