Riemer Heather C, Mates Joanna, Ryan Linda, Schleder Bonnie J
Heather C. Riemer is a critical care nurse, UW Medicine Valley Medical Center, Renton, Washington. Joanna Mates is a critical care nurse and Bonnie J. Schleder is a critical care clinical nurse specialist, Advocate Good Shepherd Hospital, Barrington, Illinois. Linda Ryan is an assistant professor, College of Nursing and Health Professions, Lewis University, Romeoville, Illinois.
Am J Crit Care. 2015 Sep;24(5):396-402. doi: 10.4037/ajcc2015706.
The benefits of quiet time, a therapeutic method of improving the health care environment, have been evaluated in patients, but only a few studies have examined the effects of quiet time on intensive care nurses.
To evaluate the effects of implementing quiet time in a medical-surgical intensive care unit on levels of light, noise, and nurses' stress.
Quiet time consisted of turning down the unit lights for a designated time. Levels of light, noise, and nurses' stress were measured. Nurses' stress levels were measured by using a 100-point visual analog scale; unit noise, by using a digital sound level meter (model 407736, Extech Instruments); and unit light, by using an illumination light meter (model 615, Huygen Corporation). Measurements were obtained 30 minutes before and 30 minutes, 1 hour, and 2 hours after implementation of quiet time.
Analysis of variance and comparisons of means indicated that both light levels and nurses' stress levels were significantly decreased after quiet time (both P < .001). Noise levels were also decreased after quiet time, but the decrease was not significant (P = .08).
Use of quiet time resulted in decreased light levels and decreased stress levels among nurses. Quiet time is an easily performed energy-saving intervention to promote a healthy work environment.
安静时段作为一种改善医疗环境的治疗方法，其益处已在患者中得到评估，但仅有少数研究探讨了安静时段对重症监护护士的影响。
评估在外科重症监护病房实施安静时段对光线、噪音水平及护士压力的影响。
安静时段包括在指定时间调暗病房灯光。测量光线、噪音水平及护士压力。护士压力水平采用100分视觉模拟量表进行测量；病房噪音采用数字声级计（型号407736，Extech仪器公司）测量；病房光线采用照度计（型号615，惠更斯公司）测量。在实施安静时段前30分钟以及实施后30分钟、1小时和2小时进行测量。
方差分析和均值比较表明，安静时段后光线水平和护士压力水平均显著降低（均P <.001）。安静时段后噪音水平也有所降低，但降幅不显著（P = 0.08）。
使用安静时段可降低光线水平并减轻护士的压力水平。安静时段是一种易于实施的节能干预措施，有助于营造健康的工作环境。
