Author Question: Which of the following are shortcomings of PAV? I. A backup rate is necessary in the event the ... (Read 17 times)

nramada · **on:** Jul 16, 2018

Which of the following are shortcomings of PAV? I. A backup rate is necessary in the event the patient becomes apneic. II. If the patient develops rapid, shallow breathing, PAV only supports that reduced effort. III. PAV is susceptible to auto-PEEP. IV. In response to increased patient effort, PAV generates increased pressure and flow.

A. I, III only
B. I, II, III only
C. I, II, IV only
D. II, III, IV only

Question 2

How does proportional assist ventilation (PAV) differ from pressure support ventilation?

A. PAV provides a guaranteed tidal volume with every breath.
B. The inspiratory flow during PAV is constant despite the patient's effort.
C. The need for sedation and/or paralysis to achieve patient-ventilator synchrony is greater with PAV.
D. PAV unloads a greater percentage of the elastic and resistive burden of the respiratory system.