Author Question: If the patient is being ventilated via a mechanical ventilator via intermittent mandatory ... (Read 58 times)

TFauchery

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If the patient is being ventilated via a mechanical ventilator via intermittent mandatory ventila-tion with partial ventilatory support, what would probably happen to PaCO2 if the patient sud-denly had no spontaneous breathing?
 
  a. Increase
  b. Decrease
  c. Stay the same
  d. Change according to FiO2

Question 2

Compared with a volume-cycled strategy, what are some potential advantages of pres-sure-targeted ventilatory support?
 
  1. Limit and control of peak airway pressures
  2. Direct control over inspiratory time
  3. Provision of a decelerating flow pattern
  a. 1 and 2 only
  b. 2 and 3 only
  c. 1 and 3 only
  d. 1, 2, and 3



Yixagurpuldink

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Answer to Question 1

ANS: A
With partial ventilatory support, if spontaneous breathing ceases or becomes inadequate, as may be the case with the development of rapid shallow breathing or apnea, alveolar ventilation may decrease, and PaCO2 may increase above an acceptable level.

Answer to Question 2

ANS: C
Pressure-control ventilation is useful in limiting airway pressure and providing a decreasing (de-celerating) flow, which may improve gas distribution, patient comfort, and synchrony.



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