Certified Rehabilitation Registered Nurse (CRRN) Practice Exam

What is an advantage of using metered dose inhalers for lung disease patients?

1. More efficient use of medication

2. Allows for easier device handling

3. Less likelihood for systemic side effects

4. Reduces need for follow-up care

The correct answer is: Less likelihood for systemic side effects

Using metered dose inhalers (MDIs) provides distinct advantages, particularly in managing lung diseases. One significant benefit is the reduced likelihood of systemic side effects. When medication is administered via inhalation, it primarily targets the lungs and minimizes systemic absorption into the bloodstream. This localized delivery means that patients experience therapeutic effects directly in the lungs while limiting the exposure of the rest of the body to the medication. Consequently, there is a lower risk of experiencing side effects that affect other organ systems, which is particularly important in patients who may already be dealing with complex respiratory issues or other comorbidities. Other options may present certain advantages, but they do not emphasize the critical aspect of minimizing systemic side effects, which is essential in medication management for lung disease patients.