Author Question: What spontaneous pressure-controlled breath mode allows separate regulation of the inspiratory and ... (Read 53 times)

luvbio · **on:** Jul 16, 2018

What spontaneous pressure-controlled breath mode allows separate regulation of the inspiratory and expiratory pressures?

a. Bilevel positive airway pressure
b. Continuous positive airway pressure
c. Pressure-supported ventilation
d. Pressure-controlled intermittent mandato-ry ventilation

Question 2

For patients with respiratory insufficiency, pressure-supported ventilation (PSV) has all of the following advantages over spontaneous breathing except:

a. decreased respiratory rate.
b. increased VT.
c. decreased O2 consumption.
d. increased muscle activity.

lou · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: A
With BiPAP, inspiratory positive airway pressure (IPAP or pressure-supported ventilation) and expiratory positive airway pressure (EPAP or positive end expiratory pressure) are set.

Answer to Question 2

ANS: D
Clinical studies have shown that compared with spontaneous breathing (including that occurring during synchronized intermittent mandatory ventilation), PSV can result in a decreased respira-tory rate, increased tidal volume, reduced respiratory muscle activity, and decreased oxygen consumption.