Emphysematous patients often exhibit a a decreased FEV1 FVC

Emphysematous patients often exhibit

a) a decreased FEV1/ FVC ratio (forced expiratory volume/ forced vital capacity)

b) a higher than normal residual volume (RV) due to air trapping

c) a decreased forced expiratory volume in 1 s (FEV1) attributed to loss of elastic lung parenchyma

d) Both a. and c., but not b.

e) a,b, and c.

Solution

d) Both a. and c., but not b.

In obstructive lung disease, the FEV1 is reduced due to an obstruction of air escaping from the lungs. Thus, the FEV1/FVC ratio will be reduced.