What would be the expected effect of pulmonary edema on the pulmonary diffusing capacity for oxygen (DO2) and carbon dioxide (DCO2)
A. reduce DO2 and reduce DCO2
B. reduce DO2 but no effect on DCO2
C. reduce DCO2 but no effect on DO2
D. no effect on either DO2 or DCO2
E. no effect on either DO2 or DCO2 unless diffusing area is reduced also