Chapter 31: Obstructive Pulmonary Diseases

The content focuses on chronic obstructive pulmonary disease (COPD), which encompasses chronic bronchitis and emphysema as overlapping conditions caused primarily by long-term exposure to noxious particles and gases, particularly cigarette smoke. The pathophysiology involves airway inflammation, mucus hypersecretion, airway remodeling, and alveolar destruction leading to air trapping and impaired gas exchange. Clinical manifestations progress from chronic cough and sputum production to dyspnea on exertion, eventually advancing to dyspnea at rest, barrel chest configuration, and respiratory failure. Diagnostic evaluation includes pulmonary function tests showing decreased forced expiratory volume, chest imaging revealing hyperinflation and flattened diaphragm, and arterial blood gas analysis demonstrating hypoxemia and potential hypercapnia. The chapter details comprehensive management strategies including smoking cessation as the primary intervention, bronchodilator therapy with beta-agonists and anticholinergics, inhaled corticosteroids for severe cases, pulmonary rehabilitation programs, oxygen therapy for hypoxemic patients, and surgical options such as lung volume reduction surgery or lung transplantation for end-stage disease. Nursing care emphasizes patient education regarding proper inhaler techniques, energy conservation methods, breathing exercises, infection prevention, and psychosocial support to help patients adapt to chronic illness limitations while maintaining optimal functional capacity.