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Author Question: In which of the following types of ventilation is alveolar expansion during inspiration due to an ... (Read 22 times)

09madisonrousseau09

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on: Jul 16, 2018
In which of the following types of ventilation is alveolar expansion during inspiration due to an increase in alveolar pressure?
 
  1. Negative-pressure ventilation
  2. Positive-pressure ventilation
  3. Spontaneous ventilation
  a. 1 and 2 only
  b. 2 and 3 only
  c. 2 only
  d. 1, 2, and 3

Question 2

Which of the following strategies are useful in the management of shunt? 1. Positive end expiratory pressure 2. Permissive hypercapnia 3. Control of membrane permeability
 
  a. 2 and 3 only
  b. 1 and 3 only
  c. 1, 2, and 3
  d. 1 only


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lin77x

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

ANS: C
Gas flows into the lungs because pressure at the airway opening (Pawo) is positive and alveolar pressure (Palv) is initially zero or less positive.

Answer to Question 2

ANS: B
The use of PEEP and control of membrane permeability accompany the management of shunt.


09madisonrousseau09

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Reply 2 on: Jul 16, 2018
Gracias!

Joy Chen

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Reply 3 on: Yesterday
Excellent

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