What are some major problems with demand-flow O2 delivery systems?
1. They are cumbersome and unattractive.
2. Equipment and maintenance costs are high.
3. The device valve may have slow response times.
4. Catheter and sensor malfunction is common.
a. 2 and 4 only
b. 1, 2, and 3 only
c. 2 and 3 only
d. 1, 2, 3, and 4
ANS: D
These and other potential problems with demand-flow O2 delivery systems are listed in Box 56-5.
Health Professions
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