Which of the following pulmonary function testing values would be found in a patient with severe, obstructive bronchiectasis?
a. Decreased RV/TLC ratio
b. Increased PEFR
c. Increased FEF25%-75%
d. Decreased FEF25%-75%
D
A decreased FEF25%-75% would be found because the patient's secretions will reduce expiratory air flow. Air trapping will result in an increased RV/TLC ratio. PEFR will be reduced because of airway secretions.
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