You and your partner are treating a 66-year-old man who experienced a sudden onset of respiratory distress. He is conscious but is unable to follow simple verbal commands. Further assessment reveals that his breathing is severely labored and his oxygen saturation is 80%. You should:
A. attempt to insert an oropharyngeal airway.
B. assist his ventilations with a bag-mask device.
C. apply a continuous positive airway pressure (CPAP) device and monitor his breathing.
D. apply high-flow oxygen via nonrebreathing mask.
Answer: B. assist his ventilations with a bag-mask device.
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