An increase in surface tension caused by decreased surfactant production results in which alteration?
A) Decrease in alveolar macrophage production
B) Increase in lung compliance
C) Decrease in alveoli collapse
D) Increase in alveoli fluid collection

Question

Quizplus · Accepted Answer

The decrease in surface tension caused by surfactant is also responsible for keeping the alveoli free of fluid.In the absence of surfactant,the surface tension tends to attract fluid into the alveoli.If surfactant production is disrupted or surfactant is not produced in adequate quantities,then the alveolar surface tension increases,causing alveolar collapse,decreased lung expansion,increased work of breathing,and severe gas-exchange abnormalities.The decrease in surface tension caused by surfactant is also responsible for keeping the alveoli free of fluid.The remaining options are not associated with decreased surfactant production.

An Increase in Surface Tension Caused by Decreased Surfactant Production