You enter the room of a patient who is receiving nasal O2 through a bubble humidifier at 5 L/min. You immediately notice that the humidifier pressure relief is popping off

Which of the following actions would be most appropriate in this situation?
a. Check and tighten all connections.
b. Replace the humidifier with a new one.
c. Look for crimped or twisted delivery tub-ing.
d. Decrease the flow rate to 2 L/min.


ANS: C
Table 41-5 provides guidance on troubleshooting the most common clinical problems with nasal cannulas. In this instance, the problem is probably with the tubing which is twisted or crimped downstream from the humidifier.

Health Professions

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