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Author Question: Which of the following modes of lung expansion therapy is physiologically most normal? a. ... (Read 211 times)

kamilo84

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on: Jul 16, 2018
Which of the following modes of lung expansion therapy is physiologically most normal?
 
  a. Continuous positive airway pressure
  b. Incentive spirometry
  c. Positive end expiratory pressure
  d. Intermittent positive-pressure breathing therapy

Question 2

How do all modes of lung expansion therapy aid lung expansion?
 
  a. Increasing the transpulmonary pressure gradient
  b. Decreasing the transthoracic pressure gra-dient
  c. Increasing the pressure in the pleural space
  d. Decreasing the pressure in the alveoli


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InfiniteSteez

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: B
Although all these approaches are used in lung expansion therapy, it should be clear that those methods that decrease Ppl (e.g., incentive spirometry) have more of a physiologic effect than those that raise Palv and often are most effective.

Answer to Question 2

ANS: A
All modes of lung expansion therapy increase lung volume by increasing the transpulmonary pressure (PL) gradient.


kamilo84

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Reply 2 on: Jul 16, 2018
Great answer, keep it coming :)

patma1981

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Reply 3 on: Yesterday
Wow, this really help

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