A nurse is discussing asthma triggers with a client. Which statement by the client indicates an understanding of common asthma triggers?

A) Correct. Frequent use of a rescue inhaler is often an early sign that asthma symptoms are worsening and may precede an exacerbation.

B) Incorrect. Rarely experiencing chest tightness does not necessarily indicate the early stages of an asthma exacerbation.

C) Incorrect. The absence of wheezing or coughing is not an early indicator of worsening asthma symptoms; wheezing is a common asthma symptom.

D) Incorrect. Infrequent nighttime awakenings due to asthma may be a sign of well-controlled asthma but do not necessarily signal an exacerbation.

A) Incorrect. Reducing airway inflammation is the primary function of inhaled corticosteroids, not bronchodilators.

B) Correct. Bronchodilators, such as beta-agonists, help relax the smooth muscles surrounding the airways, which can improve airflow and relieve bronchoconstriction in asthma.

C) Incorrect. Bronchodilators primarily provide quick relief during asthma attacks but do not prevent asthma symptoms over the long term.

D) Incorrect. Bronchodilators are not used to treat allergic reactions; they are used to relieve acute bronchoconstriction associated with asthma.