Which statement best describes the role of bronchodilators in COPD management?

Which statement best describes the role of bronchodilators in COPD management?

• A. They cure COPD
• B. They cure cor pulmonale
• C. They relax smooth muscle in the airway, improve ventilation, decrease dyspnea, and increase FEV1.
• D. They thin the mucus

Answer: (C)

Bronchodilators work by relaxing the smooth muscle around the airways, which opens the passages and lowers airway resistance. When the airways are wider, ventilation improves, breathing becomes easier, and dyspnea decreases. Spirometry often shows an increase in FEV1 after bronchodilator use, reflecting better expiratory airflow. Because COPD is a chronic, progressive disease with inflammation and structural changes, bronchodilators do not cure it or its complications like cor pulmonale. They also aren’t primarily about thinning mucus; while easier airflow can help with mucus clearance, thinning mucus is not the main action of bronchodilators.

Bronchodilators work by relaxing the smooth muscle around the airways, which opens the passages and lowers airway resistance. When the airways are wider, ventilation improves, breathing becomes easier, and dyspnea decreases. Spirometry often shows an increase in FEV1 after bronchodilator use, reflecting better expiratory airflow. Because COPD is a chronic, progressive disease with inflammation and structural changes, bronchodilators do not cure it or its complications like cor pulmonale. They also aren’t primarily about thinning mucus; while easier airflow can help with mucus clearance, thinning mucus is not the main action of bronchodilators.