defined as cough lasting for at least 3 months in winter
2 years in a row
increased secretion from the bronchial mucosa and obstruction of respiratory passages making it
hard to get air in or out SOB, prolonged expiration, persistant cough and recurrent infection
sometimes leading to fever and malaise
over time
reduced chest expansion, cyanosis decreased alveolar ventilation and increased
PaCO2. hypoxemia causing polycythemia. hypertension and cor pulmonale can
develop