进行性肺功能不全(PPI)是肺对各种严重损害的共同反应,其 X 线照片和组织学变化彼此相像,但发病机制却很不相同。PPI 最早的临床体征是持续性通气过度和对给氧不起反应。必须及时测定肺功能以确定疾病的严重程度,并作机械呼吸和其他有效治疗。一、形态和功能变化肺接触空气的功能表面面积估计为70—80平方米。该表面与肺毛细血管紧密接触,由一 Progressive pulmonary insufficiency (PPI) is a common lung reaction to various serious injuries, with similar radiographs and histological changes, but the pathogenesis is very different. The earliest clinical signs of PPI were persistent hyperventilation and no response to oxygenation. Pulmonary function must be measured in time to determine the severity of the disease and be used for mechanical respiration and other effective treatments. First, the morphological and functional changes of lung exposure to air functional surface area is estimated at 70-80 square meters. The surface is in close contact with the pulmonary capillaries, by one