What are some primary uses for pressure-supported ventilation (PSV)? 1. Recruiting collapsed alveoli and improving oxygenation 2. Augmenting patient's spontaneous VT 3. Overcoming the imposed work of breathing
a. 1 and 2 only
b. 1 and 3 only
c. 2 and 3 only
d. 1, 2, and 3
ANS: C
Since the first description of PSV in 1982, it has been used either to overcome the imposed re-sistance associated with the artificial airway or to provide ventilatory support with minimal con-trol.
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