Pharmacology and the Nursing Process by Linda Lane Lilley: Practice Exam

How do anticholinergics work in the treatment of COPD?

1. By stimulating the production of mucus

2. By causing bronchodilation through blocking ACh receptors

3. By suppressing the immune response

4. By increasing blood glucose levels

The correct answer is: By causing bronchodilation through blocking ACh receptors

Anticholinergics work by blocking the action of acetylcholine (ACh), a neurotransmitter that plays a role in muscle contraction and constriction of airways. In COPD, bronchoconstriction can occur due to inflammation and muscle constriction in the airways. By blocking ACh receptors, anticholinergics help to relax the airway muscles and promote bronchodilation. This helps to improve airflow and can help with symptoms like shortness of breath. The other options, such as stimulating mucus production or suppressing the immune response, are not relevant mechanisms of action for anticholinergics in the treatment of COPD. Additionally, increasing blood glucose levels is not a known effect of anticholinergics.