睡眠是一种复合的生物节奏,它和其他生物节奏及身体功能有着错综复杂的相互关系。在制订护理计划时,如果应用现有的睡眠知识,则护理质量必将得到很大的提高。睡眠过程出现五个阶段。在第Ⅰ阶段,睡者朦胧恍惚,对周围事物若有所知,并常常不随意地抽动,可能被惊醒。这第Ⅰ阶段仅持续几分钟。在第Ⅱ和第Ⅲ阶段,睡眠程度逐渐加深,睡者对周围事物茫无所知,但容易醒。大约在第Ⅰ阶段睡眠开始后的四十分钟,睡者进入第Ⅳ阶段,即难以唤醒的酣睡状态。在这一阶段身体很少动,脉搏、呼吸和 Sleep is a complex biological rhythm that has a complex and interrelated relationship with other biological rhythms and body functions. When developing a care plan, the quality of care is bound to improve dramatically if you apply existing knowledge of sleep. Sleeping occurs in five stages. In phase I, the sleeper may be awakened by the hazy trance and knowledge of the surroundings and often involuntarily twitching. This phase I only lasts for a few minutes. In stages II and III, the degree of sleep gradually deepened, and the sleepers knew nothing about the surroundings but easily awakened. About forty minutes after the onset of the first phase of sleep, the sleeper enters the fourth phase of sleep, which is awkward to wake up. At this stage the body rarely move, pulse, breathing and