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Author Question: The type of flow curve produced by volume ventilation with constant flow is which of the fol-lowing? ... (Read 96 times)

formula1

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on: Jul 16, 2018
The type of flow curve produced by volume ventilation with constant flow is which of the fol-lowing?
 
  a. Sinusoidal
  b. Rectangular
  c. Descending ramp
  d. Exponential decay

Question 2

The respiratory therapist observes the following pressure-time and flow-time scalars following a patient being intubated and placed on a mechanical ventilator using volume ventilation. The most appropriate action is which of the following?
 
  a. Increase the set flow rate.
  b. Switch to pressure control.
  c. Increase the set tidal volume.
  d. Change to a decelerating flow pattern.


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juwms

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

ANS: B
Volume ventilation with a constant flow will produce a rectangular flow curve unless a different flow pattern is chosen. Pressure ventilation creates a descending curve that varies with both lung characteristics and patient flow demand.

Answer to Question 2

ANS: A
When the flow rate setting is inadequate, the pressure-time scalar takes on a concave shape dur-ing inspiration when the patient is actively inhaling. In this case the demand exceeds the ventila-tor setting and capability. The inspiratory demand of the patient will be provided for by increas-ing the set flow.


formula1

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

Laurenleakan

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Reply 3 on: Yesterday
Wow, this really help

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