Institute of Medical Biometry and Informatics, University of Heidelberg, Heidelberg, Germany.
J Am Med Inform Assoc. 2012 Jul-Aug;19(4):583-90. doi: 10.1136/amiajnl-2011-000678. Epub 2012 Mar 21.
Fatal errors can occur in intensive care units (ICUs). Researchers claim that information integration at the bedside may improve nurses' situation awareness (SA) of patients and decrease errors. However, it is unclear which information should be integrated and in what form. Our research uses the theory of SA to analyze the type of tasks, and their associated information gaps. We aimed to provide recommendations for integrated, consolidated information displays to improve nurses' SA.
Systematic observations methods were used to follow 19 ICU nurses for 38 hours in 3 clinical practice settings. Storyboard methods and concept mapping helped to categorize the observed tasks, the associated information needs, and the information gaps of the most frequent tasks by SA level. Consensus and discussion of the research team was used to propose recommendations to improve information displays at the bedside based on information deficits.
Nurses performed 46 different tasks at a rate of 23.4 tasks per hour. The information needed to perform the most common tasks was often inaccessible, difficult to see at a distance or located on multiple monitoring devices. Current devices at the ICU bedside do not adequately support a nurse's information-gathering activities. Medication management was the most frequent category of tasks.
Information gaps were present at all levels of SA and across most of the tasks. Using a theoretical model to understand information gaps can aid in designing functional requirements.
Integrated information that enhances nurses' Situation Awareness may decrease errors and improve patient safety in the future.
在重症监护病房(ICU)中可能会发生致命错误。研究人员声称,床边的信息整合可以提高护士对患者的态势感知(SA),并减少错误。然而,尚不清楚应该整合哪些信息以及以何种形式整合。我们的研究使用 SA 理论来分析任务类型及其相关的信息差距。我们旨在为整合的、综合的信息显示提供建议,以提高护士的 SA。
采用系统观察法,对 3 个临床实践环境中的 19 名 ICU 护士进行了 38 小时的跟踪观察。故事板方法和概念映射有助于通过 SA 水平对观察到的任务、相关信息需求以及最常见任务的信息差距进行分类。研究团队的共识和讨论用于根据信息缺陷提出改善床边信息显示的建议。
护士以每小时 23.4 个任务的速度执行了 46 项不同的任务。执行最常见任务所需的信息通常无法访问,难以远距离看到或位于多个监测设备上。目前 ICU 床边的设备不能充分支持护士的信息收集活动。药物管理是最常见的任务类别。
SA 各个层面和大多数任务都存在信息差距。使用理论模型来理解信息差距可以帮助设计功能要求。
未来,增强护士态势感知的综合信息可能会减少错误,提高患者安全性。