Question

Volume-controlled (VC) modes of mechanical ventilation include which of the following?

I. VC continuous mandatory ventilation
II. VC intermittent mandatory ventilation
III. volume-assured, pressure-controlled
IV. bilevel positive airway pressure
a.II and IV
b.I, II, III, and IV
c.I and II
d.I, III, and IV

Answer 1

b.I, II, III, and IV. Volume-controlled (VC) modes of mechanical ventilation include VC continuous mandatory ventilation, VC intermittent mandatory ventilation, volume-assured, pressure-controlled, and bilevel positive airway pressure.

Step-by-step explanation:

Volume-controlled (VC) modes of mechanical ventilation include:

1. VC continuous mandatory ventilation
2. VC intermittent mandatory ventilation
3. Volume-assured, pressure-controlled
4. Bilevel positive airway pressure

Therefore, the correct answer is option c. I and II and III and IV. VC continuous mandatory ventilation delivers a set tidal volume at a certain rate continuously. VC intermittent mandatory ventilation delivers a set tidal volume at a certain rate, but it can be augmented with patient-triggered breaths. Volume-assured, pressure-controlled ventilation delivers a preset tidal volume while adjusting the applied pressure to maintain that volume, and bilevel positive airway pressure provides two different levels of positive pressure during inspiration and expiration.