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Author Question: How many variables can a ventilator control at one time? a. One b. Two c. Three d. ... (Read 13 times)

tiara099

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on: Jul 16, 2018
How many variables can a ventilator control at one time?
 
  a. One
  b. Two
  c. Three
  d. Four

Question 2

An increase in airway resistance during volume-controlled ventilation will have which of the fol-lowing effects?
 
  a. Volume increase
  b. Flow decrease
  c. Pressure increase
  d. Rate decrease


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ryhom

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

ANS: A
As the equation of motion shows, the ventilator can control four variables: pressure, volume, flow, and time. It is important to recognize that the ventilator can control only one variable at a time.

Answer to Question 2

ANS: C
When a ventilator is volume-controlled the ventilator will maintain the volume, which will remain unchanged, along with the flow, but the pressure will vary with changes in lung characteristics. An increase in airway pressure will require more pressure to deliver the set volume. The set rate is independent of the changes in pressure.


tiara099

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Reply 2 on: Jul 16, 2018
Thanks for the timely response, appreciate it

at

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Reply 3 on: Yesterday
Excellent

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