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Author Question: What mode of pressure-controlled ventilation is designed to prevent alveoli with short-time ... (Read 32 times)

bio_gurl

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on: Jul 16, 2018
What mode of pressure-controlled ventilation is designed to prevent alveoli with short-time con-stants from collapsing, thereby improving oxygenation?
 
  a. Pressure-controlled inverse ratio ventila-tion
  b. Pressure-controlled intermittent mandato-ry ventilation
  c. Volume-assured pressure-supported venti-lation
  d. Bilevel positive airway pressure

Question 2

Which of the following modes of ventilatory support is used to help decrease airway and alveolar pressures?
 
  a. Pressure-controlled continuous mandatory ventilation
  b. Pressure-controlled intermittent mandato-ry ventilation
  c. Volume-controlled continuous mandatory ventilation
  d. Volume-assured pressure-supported venti-lation


steff9894

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

ANS: A
Because alveoli affected by ALI/ARDS have short-time constants, more time is allotted for in-spiration and less time is allotted for expiration.

Answer to Question 2

ANS: A
Pressure-controlled continuous mandatory ventilation may be used to reduce airway and alveolar pressures in any ventilated patient.


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