Which of the following statements are true about the use of home care ventilators for delivering noninvasive ventilation (NIV)?
1. They operate only with pressure triggering.
2. They can operate on AC or DC power sources.
3. They can have a single-limb ventilator circuit.
4. Flow delivery pattern can be adjusted.
a. 1 and 3 only
b. 1, 2, and 3 only
c. 3 and 4 only
d. 2, 3, and 4 only
ANS: B
In some, flow delivery is limited to a sine-wave flow pattern.
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