呼吸衰竭是一种危重的综合征,如诊断与抢救不及时有力,常殆误生命。为此,有必要对呼吸衰竭的发病机制及其后果有较全面的认识,以便正确地指导抢救工作。概念与诊断标准呼吸衰竭是指由于任何原因引起的呼吸功能(通气和/或换气)严重损害,致使在静息状态呼吸空气时,不能维持正常的动脉血氧和二氧化碳分压,由此而引起一系列生理功能和 Respiratory failure is a critically ill syndrome, such as the diagnosis and rescue are not timely and powerful, often almost life-error. Therefore, it is necessary to have a comprehensive understanding of the pathogenesis of respiratory failure and its consequences in order to correctly guide the rescue work. Concepts and Diagnostic Criteria Respiratory failure refers to the severe impairment of respiratory function (ventilation and / or ventilation) caused by any cause that renders normal arterial oxygen and carbon dioxide partial pressure unobtainable while breathing air at rest, whereby Caused by a series of physiological functions and