Which of the following interfaces is (are) used in the application of noninvasive positive pressure ventilation?
1. Nasal mask
2. Nasal pillow
3. Oronasal mask
4. Total face mask
a. 1 only c. 1, 2, and 4
b. 1 and 3 d. 1, 2, 3, and 4
ANS: D
The interfaces that are presently being used include the nasal mask, nasal pillow, oronasal mask, total face mask, and mouthpiece.
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