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NBME 24 Answers

nbme24/Block 1/Question#9

The graph shows expiratory pressure-volume curves ...

Diffuse pulmonary fibrosis

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submitted by jus2234(10),

The graph shows a decrease in compliance of the lungs. Of the options, diffuse pulmonary fibrosis is the only choice that is an example of a restrictive lung disease which would decrease compliance

nor16  asthma = emphysema = chronic bronchitits, obstructive. leaves 2 out of 5... +  
usmile1  Common causes of decreased lung compliance are pulmonary fibrosis, pneumonia and pulmonary edema. So yes pneumonia could possibly cause the decreased compliance shown, but the vignette says the patient has "9 month history of progressive SOB." That couldn't reasonably be pneumonia, leaving diffuse pulmonary fibrosis as the best answer. +