Which of the following best describes positive expiratory ...

[Arii_bell]

Which of the following best describes positive expiratory pressure (PEP) therapy?
 
  a. Expiration against a variable flow re-sistance
  b. Expiration against a fixed threshold re-sistance
  c. Inspiration against a variable flow re-sistance
  d. Inspiration against a fixed threshold re-sistance

Question 2

In theory, how does positive expiratory pressure (PEP) help to move secretions into the larger airways?
 
  1. Filling underaerated segments through collateral ventilation
  2. Preventing airway collapse during expiration
  3. Causing bronchodilation during inspiration
  a. 2 and 3 only
  b. 1 and 2 only
  c. 1, 2, and 3
  d. 1 and 3 only

[Kedrick2014]

Answer to Question 1

ANS: A
PEP therapy involves active expiration against a variable flow resistance.

Answer to Question 2

ANS: B
In theory, PEP helps move secretions into the larger airways by (1) filling underaerated or no-naerated segments via collateral ventilation and (2) preventing airway collapse during expiration.

[Arii_bell]

TYSM

[gcook]

Gracias!