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

Question

Quizplus · Accepted Answer

Transport rates are slower in the presence of the following conditions or substances,many of which are associated with airway damage: COPD and CF;airway drying (such as with the use of dry gas for mechanical ventilation);narcotics;endotracheal suctioning,airway trauma,and tracheostomy;cigarette smoke;and hyperoxia and hypoxia.Atmospheric pollutants (sulfur dioxide,nitrous oxide,ozone)and allergens may increase transport,especially at low concentrations.At higher,toxic concentrations or with prolonged exposure,these agents decrease transport rates.

Which of the Following Conditions or Substances Slow Down the Mucociliary