CPFT Practice Exam 2025 – Complete Test Prep Guide

Bronchial hyperreactivity refers to the increased sensitivity of the airways to various stimuli, resulting in exaggerated bronchoconstriction. This characteristic is commonly observed in conditions such as asthma, where the airways react strongly to a variety of triggers, including allergens, irritants, and respiratory infections.

Individuals with bronchial hyperreactivity often experience symptoms like wheezing, coughing, and shortness of breath when exposed to these stimuli. Understanding this term is crucial in the context of respiratory diseases, particularly in handling conditions like asthma, where management revolves around reducing airway inflammation and preventing hyperreactivity.

The other answer choices highlight different pulmonary concepts. For instance, reduced responsiveness of the airways to stimuli would suggest a lack of reactivity, which is not the case in bronchial hyperreactivity. Permanent constriction of the bronchi and bronchodilation in response to allergens do not accurately encapsulate the definition and implications of bronchial hyperreactivity within the framework of respiratory physiology.