What Are Some Major Problems with Demand-Flow O₂ Delivery Systems

question 55

Multiple Choice

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

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