Essential features of positive pressure ventilators that are used in alternative care settings on pa-tients with intact ventilatory drive and respiratory muscles include which of the following?
1. Mandatory minimum rate
2. Flow or inspiratory time control
3. Breath-triggering mechanism
4. Spontaneous breathe mode
a. 1 and 3 only
b. 1, 2, and 3 only
c. 3 and 4 only
d. 2, 3, and 4 only
ANS: B
Table 56-6 lists the essential, recommended, and optional features of positive pressure ventilators used in alternative care settings.
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