What is the primary goal of using bronchodilators in respiratory therapy?

Bronchodilators are primarily utilized in respiratory therapy to improve airflow and relieve bronchospasm, which is a critical aspect of managing obstructive airway diseases like asthma and chronic obstructive pulmonary disease (COPD). These medications work by relaxing the muscles surrounding the airways, leading to dilation or widening of the bronchial passages. This action helps to alleviate symptoms such as shortness of breath, wheezing, and chest tightness, allowing patients to breathe more easily.

While the other options mention important aspects of respiratory care, they do not accurately reflect the primary intent behind the use of bronchodilators. Lowering blood pressure is not a primary function of bronchodilators, and although reducing mucus production can be beneficial in some respiratory conditions, bronchodilators do not primarily serve this purpose. Enhancing oxygen absorption is also vital in the overall management of respiratory conditions but is not the direct action of bronchodilators. Therefore, the correct choice highlights the fundamental therapeutic aim of these medications in supporting adequate airway function.