Question

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

Answer 1

Pressure-supported ventilation (PSV) has several advantages over spontaneous breathing for patients with respiratory insufficiency. However, it does not increase muscle activity.

Step-by-step explanation:

Pressure-supported ventilation (PSV) is a type of mechanical ventilation used for patients with respiratory insufficiency. It provides assistance to the patient's spontaneous breathing by delivering a preset level of pressure during inspiration. PSV has several advantages over spontaneous breathing, including decreased respiratory rate, increased tidal volume (VT), and decreased oxygen consumption. However, PSV does not increase muscle activity; in fact, it reduces the workload on the respiratory muscles by providing additional support.