Studies on Lung Volume 



165 



1. Diagram showing mode of production of changes in total lung volumes in 

 heart patients. From Patient No. 1. Ees. = residual air. R = reserve 

 air. K = complementary air. 



75 (2035) 



Studies on lung volume. IX. Patients with lung emphysema 



pulmonum. 



By CHRISTEN LUNDSGAARD and KNUD SCH1ERBECK. 



[From the Medical Clinic of the University of Copenhagen, Den- 

 mark.] 



Twelve patients suffering from chronic emphysema of the 

 lungs were studied. All of them except Nos. 5 and 11 have also 

 asthma but no determinations were made within 24 hours after an 

 attack of asthma. Except in No. 5 no fine rales were present in 

 the lungs. The technique was as described in previous papers. In 

 the diluting experiments, full mixture was secured by construct- 

 ing "mixtures curves" (see paper No. 4 of this series). All figures 

 in this and previous papers are given at room temperature and 

 observed pressure. The size of chest was determined as described 

 by Lundsgaard and Van Slyke. The normal total lung volume 

 54 



was calculated as . X observed "chest volume" in maximum 



