In theory, how does positive expiratory pressure (PEP) help to move secretions into the larger airways?
I.filling underaerated segments through collateral ventilation
II.preventing airway collapse during expiration
III.causing bronchodilation during inspiration

Question

Quizplus · Accepted Answer

Positive expiratory pressure (PEP) helps move secretions into the larger airways by filling underaerated segments through collateral ventilation and preventing airway collapse during expiration. It does not cause bronchodilation during inspiration. Therefore, the best choice is B (I and II).

In Theory, How Does Positive Expiratory Pressure (PEP) Help to Move