McLaughlin A, McLaughlin B, Elliott J, Campalani G
Intensive Crit Care Nurs. 1996 Aug;12(4):226-30. doi: 10.1016/s0964-3397(96)80106-6.
Noise in hospitals frequently exceeds recommended levels and has detrimental psychological and physiological effects on patients and staff. The aim of this study was to record the noise levels within the cardiac surgical intensive care unit (CSICU) environment in secret. The device used was a CEL Instruments environmental noise meter concealed in a dummy box featuring temperature and humidity digital displays. It allowed greater than 16 hours recording time at a 1-minute resolution. The 24-hour period was covered by overlapping recordings. The data collected were downloaded onto a personal computer for analysis. The maximum sound level recorded was 100.9 decibel level (dBA), 1 min Lmax (the maximum sound level occurring in a 1-min period). The minimum sound level was 61.3 dBA 1 min Lmax. The continuous background noise was at its lowest at 57.5 dBA 1 min equivalent continuous sound pressure levels (Leq) and at its peak 77.3 dBA 1 min Leq. Noise in the CSICU was above the recommended levels for patients and staff well-being. Future studies will be designed to establish a correlation between sound levels and events.
医院内的噪音经常超过推荐水平，对患者和工作人员产生有害的心理和生理影响。本研究的目的是秘密记录心脏外科重症监护病房（CSICU）环境中的噪音水平。所使用的设备是一台CEL Instruments环境噪音计，藏于一个带有温度和湿度数字显示屏的仿形盒中。它能以1分钟的分辨率进行超过16小时的记录。通过重叠记录覆盖24小时时段。收集到的数据被下载到个人计算机上进行分析。记录到的最大声级为100.9分贝（dBA），1分钟Lmax（1分钟时段内出现的最大声级）。最小声级为61.3 dBA 1分钟Lmax。连续背景噪音最低为57.5 dBA 1分钟等效连续声压级（Leq），最高为77.3 dBA 1分钟Leq。CSICU中的噪音高于保障患者和工作人员健康的推荐水平。未来的研究将旨在确定声级与事件之间的相关性。
