Author Question: Which of the following conditions or substances slow down the mucociliary transport and are ... (Read 25 times)

AEWBW · **on:** Jul 16, 2018

Which of the following conditions or substances slow down the mucociliary transport and are associated with airway damage? 1. Chronic obstructive pulmonary disease (COPD) and cystic fibrosis (CF) 2. Mechanical ventilation

3. Narcotics
4. Cigarette smoke
5. Hyperoxia

a. 1, 2, and 5 only
b. 2, 3, and 5 only
c. 1, 3, 4, and 5 only
d. 1, 2, 3, 4, and 5

Question 2

How does dornase alfa work?

a. Adds water to secretions
b. Substitutes sulfhydryl radicals for disulfide bonds in mucus
c. Breaks down DNA content in sputum
d. Increases mucociliary beat frequency