The results of pulmonary function testing show a normal total lung capacity and decreased,but reversible,FEV₁ and FEV₂₅₋₇₅.The patient is a 22-year-old,nonsmoking man with a history of intermittent "noisy breathing." Which of the following is most likely the cause of his problem?
A) Asthma
B) Emphysema
C) Pulmonary fibrosis
D) Severe restrictive pulmonary disease

Question

Quizplus · Accepted Answer

Asthma is a disease that shows reversibility in the FEV₁ and FEV₂₅₋₇₅.This reversibility,coupled with the fact that he is an otherwise healthy,nonsmoking,22- year-old with a history of intermittent noisy breathing,makes asthma the best choice as the most likely cause of the problem.

The Results of Pulmonary Function Testing Show a Normal Total