CPFT Practice Exam 2025 – Complete Test Prep Guide

Obstructive lung diseases are characterized by a decrease in airflow due to the narrowing or blockage of the airways, leading to difficulty in exhaling air from the lungs. Asthma and Chronic Obstructive Pulmonary Disease (COPD) are two primary examples of such conditions.

Asthma is a chronic inflammatory disorder of the airways that causes episodes of wheezing, breathlessness, chest tightness, and coughing, often triggered by allergens or irritants. In asthma, the airways can become inflamed and constricted, making it difficult for air to move in and out of the lungs.

Chronic Obstructive Pulmonary Disease (COPD) encompasses a group of lung diseases, primarily emphysema and chronic bronchitis, that cause long-term respiratory symptoms and airflow limitation. Emphysema involves the destruction of alveoli, while chronic bronchitis is characterized by chronic inflammation and mucus production in the airways.

Given this context, identifying asthma and COPD as the two types of obstructive lung diseases highlights the key features of airflow limitation central to this category of respiratory conditions.