The therapist is preparing to nebulize a medication via heliox to a spontaneously breathing patient who is already receiving heliox. Which of the following pieces of equipment will the therapist need to assemble for this procedure? I. nasal cannula II. valved O2 mask III. 2 one-way valves IV. Y-connector
A. I, III only
B. II, IV only
C. I, II, IV only
D. II, III, IV only
Question 2
What was the conclusion of a study performed by Darquenne and Prisk comparing upper respiratory tract deposition of aerosol particles nebulized with heliox versus air?
A. The two gases are equally effective for nebulization and particle delivery to the patients' lungs.
B. Air is more effective for particle deposition to the large airways than to the small ones.
C. Heliox appears to better favor particle deposition to the peripheral airways than to the large airways.
D. The data from this study are inconclusive.