英文摘要 |
Various environmental features of the hospital intensive-care unit (ICU) can negatively affect patients’ sleep quality. The unit is typically lit 24 hours a day, with the lighting dimmed only during the late-night shift. Moreover, ambient noise, mainly from staff conversation and mechanically regulated alarms, is relatively constant. This study was undertaken to assess the sleep quality of patients in our hospital’s ICU and determine ways to improve it. The study was conducted from July 15 to July 30, 2007, and involved selected patients who were confined to the ICU for more than 48 hours and were conscious and able to communicate with us. In addition to patient questionnaires, the Verran and Snyder-Halpern Sleep Scale was used to measure the patients’ sleep quality. At the beginning of the study, the mean sleep quality score was 46.65. Analysis of the data revealed that sleep was not assigned much importance in the ICU. Patients did not experience the passage of time because of the constant lighting. They felt significant discomfort from the pressure of invasive tubes and other devices, restraint of their extremities, and postoperative wound pain. The nursing staff generated a high volume of noise, and warning bells and alarms were excessively loud and not turned off quickly. All of these factors disturbed patients’ sleep. After implementation of improvements in the environmental conditions of the ICU, the patients’ sleep quality was reassessed, and the mean score was 76.87. In the ICU unit, where patients are severely ill, staff attention tends to focus on medical treatment and disease status. This can easily lead to disregard of patient comfort and sleep quality. Significant improvement can be achieved through education of medical personnel and emphasis on the importance of meeting patients’ basic physiological needs. The results may include improved nursing care and faster patient recovery. |