McqMate
| Q. |
Regarding gas exchange in the lungs: |
| A. | PaO2 in pulmonary capillaries is the same as PaO2 in the aorta |
| B. | diffusing capacity for O2 (DLO2) increases from 25→65ml/min/mmHg during exercise |
| C. | DLO2 is unaffected by beryllium poisoning and sarcoidosis |
| D. | CO2 retention is frequently a problem in patients with alveolar fibrosis |
| E. | decreased secretion of PDGF by alveolar macrophages causes pulmonary fibrosis |
| Answer» B. diffusing capacity for O2 (DLO2) increases from 25→65ml/min/mmHg during exercise | |
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