A patient receiving nasal O2 at 3 L/min complains of nasal dryness and irritation. Which of the following actions would be appropriate?
a. Recommending that the flow be de-creased to 2 L/min
b. Adding a humidifier to the delivery sys-tem
c. Recommending that the flow be increased to 4 L/min
d. Switching to a simple mask at 3 L/min
ANS: B
For the occasional patient who complains of nasal dryness or irritation when receiving low-flow O2, a humidifier should be added to the delivery system.
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