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血管通路再循环临床影响因素的探讨 被引量:2

Probe into clinical influencing factors of vascular access recirculation
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摘要 [目的]应用尿素模式鉴别和量化血管通路再循环率探讨再循环影响因素,以期为临床诊断和维护血管通路的效能提供重要依据。[方法]对50例(31例内瘘、19例中心静脉置管)常规血液透析病人进行测定,在病人透析1 h后由3名技术操作熟练的血液透析护士同时从股动脉、对侧上肢的肘前静脉及体外循环血路的动脉、静脉采样口抽取血标本。采血后立即降低血流量到120 mL/min,10 s后关闭血泵再次从血路的动脉采样口抽取血标本,然后分别依据从外周静脉、股动脉及关闭血泵后动脉采样口抽取血标本的尿素氮浓度计算再循环率。[结果]使用尿素作为标识溶质,再循环率分别为股动脉0.14%±2.03%;尿素模式0.09%±1.76%;外周静脉6.92%±2.61%。[结论]尿素模式测定法不仅能准确反映再循环率,并且方法简单易行;血管通路正确操作流程对降低再循环率也起到置观重要的作用。
出处 《护理研究(下旬版)》 2011年第6期1632-1634,共3页 Chinese Nursing Researsh
基金 黑龙江省教育厅2009年科研课题 编号:976
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