- Upon pulmonary examination, bilateral breath sounds were audible with few expiratory wheezes at the lung bases
; there were no rales. Chest x-rays revealed very prominent bronchial markings consistent with chronic bronchitis and possibly bronchiectasis; no acute infiltrates were identified. Pulmonary function tests (Table 1) indicated a markedly increased residual volume, slightly elevated total lung capacity, and moderately decreased transport factor (diffusion capacity)