Which medication increases volume and reduces the viscosity of submucosal secretions?

• A. Albuterol
• B. Prednisone
• C. Mucinex
• D. Montelukast

Answer: (C)

The correct choice, which is Mucinex, is a medication that specifically works to increase the volume and reduce the viscosity of submucosal secretions. Mucinex, or guaifenesin, is an expectorant that helps by thinning mucus in the airways, making it easier to expel through coughing. This action is particularly beneficial for individuals suffering from respiratory conditions characterized by thick mucus production, such as bronchitis and certain types of COPD.

By enhancing mucus clearance, Mucinex assists in maintaining clearer airways, thus improving overall respiratory function and comfort. It makes dry or productive coughs more manageable, contributing to effective mucosal clearance.

In contrast, other options like albuterol and montelukast serve different roles in respiratory therapy. Albuterol is a bronchodilator that relaxes airway muscles but does not specifically affect mucus viscosity. Prednisone, a corticosteroid, primarily reduces inflammation in airways but does not directly influence secretions. Montelukast is a leukotriene receptor antagonist used for asthma and allergies but does not have a direct mechanism for altering mucus secretions.