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Author Question: Which of the following ventilator modes decreases the effect of airway resistance on the pa-tient's ... (Read 77 times)

CORALGRILL2014

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on: Jul 16, 2018
Which of the following ventilator modes decreases the effect of airway resistance on the pa-tient's spontaneous breathing?
 
  a. Pressure-support ventilation
  b. Pressure-controlled continuous mandatory ventilation
  c. Volume-controlled intermittent mandatory ventilation
  d. Volume-controlled continuous mandatory ventilation

Question 2

Which of the following represents the safe starting point for pressure support of a patient just placed on volume-controlled intermittent mandatory ventilation with the following set and measured parameters:
 
  tidal volume, 475 mL; peak inspiratory pressure, 30 cm H2O; plateau pressure, 10 cm H2O; and flow rate, 45 L/min?
  a. 4 cm H2O c. 20 cm H2O
  b. 7 cm H2O d. 27 cm H2O


matt

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

ANS: A
Pressure-support ventilation is a spontaneous breath type of ventilation that allows the operator to select a pressure to support the patient's work of breathing and counteract airway resistance.

Answer to Question 2

ANS: C
The safe starting point for pressure support is the transairway pressure value (Peak inspiratory pressure  Plateau pressure). In this case, transairway pressure = 30 cm H2O  10 cm H2O = 20 cm H2O.


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CORALGRILL2014

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Reply #2 on: Jul 16, 2018
Thank you


matt

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Reply #3 on: Jul 16, 2018
No problemo


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