Following are the features of COPD,except:
Correct Answer: Residual volume decreases
Description: -Residual volume increases in COPD Chronic obstructive pulmonary disease (COPD) It is a disease characterised by persistent airflow limitation that is usually progressive, and associated with an enhanced inflammatory response. Airflow limitation is almost irreversible Pathogenesis Cigarette smoking is the main trigger It causes recruitment of many inflammatory and immune cells in the lungs Proteases secreted from these cells will breakdown the extracellular matrix Oxidant causes fuher chronic inflammation and damage to the structure of cell Pulmonary emphysema occurs because of the ineffective repair of matrix and elastin.
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