A physician orders a 70% He:30% O2 mixture to reduce the work of breathing in a patient having an acute asthmatic attack. Which of the following delivery systems would be appropriate in this case?
a. Adult O2 tent at 15 L/min
b. Aerosol mask at 12 L/min
c. Nasal cannula at 6 L/min
d. Nonrebreathing mask at 10 L/min
ANS: D
In general, heliox should be delivered to most spontaneously breathing patients via a tight-fitting (nondisposable) nonrebreathing mask with a fully functional valved exhalation port.
Health Professions
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