Certified Respiratory Therapist Practice Exam 2025 - Free Practice Questions and Study Guide

The two predominant types of asthma are classified as allergic (or extrinsic) and non-allergic (or intrinsic). Allergic asthma is often triggered by allergens such as pollen, dust mites, pet dander, and mold. This type of asthma is typically associated with a family history of allergies or asthma, and it involves an immune response to specific environmental antigens.

On the other hand, non-allergic asthma does not involve an allergic reaction but can be triggered by a variety of factors, including stress, exercise, cold air, or respiratory infections. This type of asthma may occur in individuals without a history of allergies and is thought to be driven more by factors such as airway hyperreactivity or underlying inflammation that is not directly related to allergens.

Understanding these two types is crucial for effective management and treatment strategies, as the triggers and underlying mechanisms differ significantly. This classification helps clinicians tailor interventions that are more effective for each individual patient based on their specific type of asthma.