Which of the following is considered an advantage of the transtracheal catheter?
a. It does not provide any economic benefit compared with the nasal cannula.
b. It decreases the anatomic reservoir.
c. It requires 40% to 60% less O2 flow than the nasal cannula.
d. It requires higher flows than the nasal cannula.
ANS: C
Compared with a nasal cannula, a transtracheal catheter needs 40% to 60% less O2 flow to achieve a given arterial partial pressure of O2 (PaO2).
Health Professions
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