Chronic bronchitis is characterized by increased air flow rates, dyspnea, hypoxemia, and hypocapnia.

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Chronic bronchitis is actually characterized by cough, sputum production, and airway obstruction which can lead to decreased airflow rates and difficulty breathing, but not necessarily increased air flow rates. Hypoxemia (low oxygen levels in the blood) and hypercapnia (high carbon dioxide levels in the blood) may also occur.

Chronic Bronchitis Is Characterized by Increased Air Flow Rates, Dyspnea