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Author Question: Which of the following are characteristics of a ventilator that function as a true volume ... (Read 45 times)

a0266361136

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on: Jul 16, 2018
Which of the following are characteristics of a ventilator that function as a true volume control-ler?
 
  1. Its pressure waveform changes with changes in lung mechanics.
  2. It measures and uses volume to control the volume waveform.
  3. Its volume waveform stays constant with changes in lung mechanics.
  a. 1 and 2 only
  b. 1 and 3 only
  c. 2 and 3 only
  d. 1, 2, and 3

Question 2

According to the equation of motion of the respiratory system, a ventilator can control which of the following variables? 1. Volume 2. Resistance 3. Pressure 4. Flow
 
  a. 1 and 3 only
  b. 1, 2, and 3 only
  c. 3 and 4 only
  d. 1, 3, and 4 only


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ally

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

ANS: D
If the ventilator controls volume, the volume and flow waveforms will remain consistent, but pressure will vary with changes in respiratory mechanics. To qualify as a true volume controller, a ventilator must measure volume and use this signal to control the volume waveform.

Answer to Question 2

ANS: D
There are only three variables in the equation of motion that a ventilator can control: pressure, volume, and flow.


a0266361136

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Reply #2 on: Jul 16, 2018
TY


ally

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Reply #3 on: Jul 16, 2018
Happy to Help


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