Oxygen-conserving delivery systems include which of the following? 1. Transtracheal catheter 2. Reservoir cannula or pendant 3. Pulse dose
a. 2 and 3 only
b. 1 and 2 only
c. 1, 2, and 3
d. 1 and 3 only
ANS: C
These include the transtracheal O2 catheter, the reservoir cannula, and the demand or pulse-dose O2 delivery systems.
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