作者: Ross Bb , Buist As
DOI: 10.1164/ARRD.1973.108.5.1078
关键词:
摘要: A modified single-breath nitrogen test was used in an emphysema screening center to assess the value of analysis alveolar plateau early diagnosis airway obstruction. Predicted values for slope (the increase concentration per 1,000 ml) were first constructed using a population 134 nonsmoking males and 203 females. Data obtained from 530 cigarette smokers attending then compared with these predicted closing volume, expressed as percentage vital capacity, total lung derived virtually same adults. Of smokers, 47 cent had abnormal plateau, 44 ratio capacity 35 volume 11 forced expiratory vo...