On scene, a confused 68-year-old female with possible stroke has an SpO2 of 91% on room air. Which one of the following indicates the most appropriate and beneficial type of oxygen therapy for this patient?
A) SpO2 98% with 12 lpm O2 via nonrebreather
B) SpO2 95% with 2 lpm O2 via nasal cannula
C) SpO2 100% with 15 lpm O2 via nonrebreather
D) SpO2 97% with 4 lpm O2 via nasal cannula
Answer : B
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