The transtracheal oxygen catheter is a guiding principle in which oxygen is delivered directly into the trachea and does which of the following?
a. Provides the patient with adequate oxygen
b. Reduces the amount of oxygen used
c. Provides an overall oxygen savings of 54% to 59%
d. All of the above
ANS: D
That is, the direct delivery of oxygen into the trachea reduces dilution with room air on inspira-tion because the upper airways (the anatomic reservoir) are filled with oxygen.
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