Which of the following symptoms is NOT commonly associated with chronic bronchitis?

Chronic bronchitis is characterized by a persistent cough, production of sputum, and airway obstruction caused by inflammation and mucus production. Symptoms often include dyspnea (difficulty breathing), cyanosis (a bluish discoloration of the skin due to low oxygen levels), and hypoxia (deficiency in the amount of oxygen reaching the tissues).

Weight gain is not commonly associated with chronic bronchitis. While some patients may experience weight loss due to difficulty breathing or lack of physical activity, weight gain does not fit the typical symptom profile. Instead, patients with chronic bronchitis tend to have increased work of breathing, which can lead to decreased appetite or changes in lifestyle that contribute to weight loss rather than gain.

Understanding the common symptoms of chronic bronchitis helps in distinguishing it from other respiratory conditions, where different symptoms may present more prominently.