Which of the following are O2-conserving devices? 1. Transtracheal oxygen catheters 2. Reservoir cannulas 3. Pulse-demand oxygen-delivery systems 4. E size cylinder O2 tanks
a. 1, 2, and 4 c. 1, 3, and 4
b. 1, 2, and 3 d. 1, 2, 3, and 4
ANS: B
Transtracheal oxygen catheters, reservoir cannulas, and pulse-demand oxygen-delivery systems are recent developments that have significantly improved the delivery of oxygen therapy, espe-cially with regard to conserving oxygen supplies during long-term oxygen therapy.
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