What physical change occurs in the lungs due to chronic bronchitis?

Chronic bronchitis leads to significant changes in the respiratory system, primarily involving the airways. In this condition, the airways become inflamed and produce excess mucus, which contributes to narrowing and obstruction. This narrowing is due to various factors, including inflammation of the airway walls and increased mucus production, both of which impede airflow. As a result, patients often experience difficulty in breathing and wheezing, particularly during exhalation.

Understanding the consequences of chronic bronchitis is vital for effective management and treatment. While permanent lung scarring can occur in some respiratory diseases, it isn't a defining feature of chronic bronchitis itself. The formation of pulmonary blebs is more associated with conditions like emphysema rather than chronic bronchitis. Lastly, chronic bronchitis does not increase lung flexibility; rather, the airways' obstruction limits airflow and reduces effective ventilation. This concept is essential for paramedics and healthcare providers to recognize in order to provide appropriate care and patient education.