A palliative care physician evaluates an 80-year-old man during a routine home hospice visit. The patient was enrolled in hospice care one month ago for end-stage chronic obstructive pulmonary disease (COPD). He reports a distressing, constant sensation of "air hunger" and breathlessness that has progressively worsened over the last 48 hours, even while resting in bed. His current medications include a long-acting muscarinic antagonist, a long-acting beta-agonist, inhaled corticosteroids, and continuous oxygen at 2 L/min via nasal cannula.
Vital signs are temperature 37.1°C (98.8°F), blood pressure 130/80 mm Hg, pulse 98/min, and respiratory rate 26/min. Oxygen saturation is 90% on his baseline 2 L/min oxygen. He appears anxious and is using accessory muscles of respiration. Lung auscultation reveals diminished breath sounds bilaterally with faint expiratory wheezes, which is unchanged from his prior examination. There is no peripheral edema, calf tenderness, fever, or change in the volume or purulence of his sputum.
Which of the following is the most appropriate next step in management?
- AIncrease the supplemental oxygen flow to 6 L/min
- BOrder computed tomography angiography of the chest
- Initiate low-dose oral morphineCevap
- DTransfer the patient to the hospital for non-invasive positive pressure ventilation
- EPrescribe a course of oral levofloxacin