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Author Question: What will be the effect of auto-PEEP on a patient receiving pressure-target breaths from a ... (Read 67 times)

ghost!

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on: Jul 16, 2018
What will be the effect of auto-PEEP on a patient receiving pressure-target breaths from a mechanical ventilator?
 
  A. increased peak inspiratory pressure
  B. reduced tidal volume
  C. decreased flow-termination criterion
  D. increased inspiratory time

Question 2

Excluding the upper and central airways, where in the lungs of a normal person is the airway resistance the highest?
 
  A. apices
  B. middle zone
  C. bases
  D. Airway resistance is equal throughout these three lung zones.


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kjo;oj

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

ANS: B
A. Incorrect response: The peak inspiratory pressure will increase in the presence of auto-PEEP during volume-targeted ventilation.
B. Correct response: The tidal volume will be reduced in the presence of auto-PEEP during pressure-targeted ventilation.
C. Incorrect response: Auto-PEEP will not affect the flow-termination criterion.
D. Incorrect response: The inspiratory time is not affected by auto-PEEP.

Answer to Question 2

A. Incorrect response: See explanation C.
B. Incorrect response: See explanation C.
C. Correct response: In a normal person, gravitational effects on lung water and required stretch make airway resistance slightly higher in the bases than in other regions of the lungs.
D. Incorrect response: See explanation C.


ghost!

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Reply #2 on: Jul 16, 2018
Thank you :)


kjo;oj

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Reply #3 on: Jul 16, 2018
Happy to help you


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