Mr. Giri is 68 years old and has been a smoker since he was 14 years old. His do

Question

Mr. Giri is 68 years old and has been a smoker since he was 14 years old. His doctor has diagnosed him with COPD. What is the major characteristic of this disease (what tissue has been and is currently under destruction)? Compare the changes that have occurred in Mr. Giri’s lungs with those of a person without emphysema by using the following pulmonary function test values: forced expiratory volume in 1 second (FEV1), FEV1/forced vital capacity, peak flow, functional residual capacity (FRC), residual volume (RV), and total lung capacity (TLC).

Explanation / Answer

Destruction of alveolar sacs leading decreases the lung tissue involved in gas exchange is the characteristic feature of emphysema

In person with emphysema FEV1, forced vital capacity and peak flow decreases where as FRC, residual volume,, total lung capacity increases

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