inflammation of the bronchi caused by chronic exposure by irritants, especially tobacco smoke.
Increase in the size of mucous glands.
Bronchial walls thicken and impair airflow.
Main symptom is a cough that brings up mucous (sputum)
Hinders airflow and gas exchange because of mucous plugs and infection narrowing the airways.
PaO2 decreases (hypoxemia) and arterial blood carbon dioxide (PaCo2) increases causing respiratory acidosis.
- Age 40-50
- stocky build with no history of weight loss
- barrel chest
- increased secretions
- thickened bronchial walls