目的 研究ICU患者行连续性肾脏代替治疗实施护理风险因素分析对非计划性下机时间的影响。方法 选择我院重症 监护病房(ICU)实施连续性肾脏代替疗法(CRRT)患者60例，随机分为观察组和对照组各30例，其中对照组使用常规 护理，研究则组在此基础上实施危险因素分析护理，均护理至正常出院。观察两组患者护理干预后两组患者管路使 用时间、入住ICU时间及非计划性下机时间，并统计两组护理期间非计划性下机次数及原因。结果 观察组管路使用 时间高于对照组(P＜0.05)；观察组入组ICU时间及非计划下机例数均低于对照组(P＜0.05)。观察组非计划性下机 次数低于对照组(P＜0.05)，其中两组跨膜压过高、滤器出现Ⅱ或Ⅲ级凝血发生次数相当(P＞0.05)，观察组无法排 除警报停机发生次数低于对照组(P＜0.05)。结论 ICU患者行连续性肾脏代替治疗实施护理风险因素分析主要是通 过减少非计划下机次数，进而缩短非计划性下机时间。

Objective To study the effects of nursing risk factors analysis on unscheduled interruption time of ICU patients undergoing continuous renal replacement therapy. Methods 60 patients in the intensive care unit(ICU) of our hospital who were treated with continuous renal replacement therapy(CRRT) were selected and randomly divided into observation group and control group, with 30 cases in each group. Control group was given routine nursing, and observation group was given risk factors analysis and nursing on this basis, and they were nursed until normal discharge. The pipeline use time, ICU stay and unscheduled interruption time were observed in the two groups after nursing intervention, and the frequency and reasons of unscheduled interruption during nursing were counted in the two groups. Results The pipeline use time in observation group was higher than that in control group(P<0.05). The ICU stay and the number of cases of unscheduled interruption in observation group were lower than those in control group(P<0.05). The frequency of unscheduled interruption in observation group was lower than that in control group (P<0.05). The high transmembrane pressure and the frequency of grade II or III coagulation occurred in filter were similar in the two groups(P>0.05), and the number of interruption which could not rule out the alarm reason in observation group was lower than that in control group (P<0.05). Conclusion Nursing risk factors analysis for ICU patients undergoing continuous renal replacement therapy is mainly to shorten unscheduled interruption time by reducing frequency of unscheduled interruption.