s51
sudha2015 - 10-19-11 04:39

The diagram above shows spirographic tracings of forced expirations
from two different individuals. Trace X was obtained from a person with
healthy lungs. Which of the following is most likely represented by
trace Y?
A. Asthma
B. Bronchospasm
C. Emphysema
D. Interstitial fibrosis
E. Old age