CASE STUDY:
75-Year-Old Female With Dyspnea, Fatigue, and Weight Loss

QUESTION ONE

The definition of acute exacerbation of IPF consists of the following, EXCEPT?

(A) Exacerbation of dyspnea within a few weeks
(B) Productive cough
(C) Newly developing pulmonary infiltrates on chest radiograph
(D) Deterioration of hypoxemia
(E) Absence of apparent infectious agents
 
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