A Listless and Lethargic 84-Year-Old Male Responds to Physical Stimuli

Multiple Choice

A listless and lethargic 84-year-old male responds to physical stimuli with garbled speech. His respirations show poor effort and are rapid and labored with a room air SpO₂ is 84%. Additionally, you cannot appreciate breath sounds in his right lung. The best form of oxygen therapy for this patient would be:

A) positive pressure ventilation.
B) high-concentration oxygen via a nonrebreather.
C) 2 lpm via nasal cannula initially and increase liter flow as needed.
D) continuous positive airway pressure (CPAP) .