A 78-year-old patient with a history of hypertension and diastolic heart failure is being transported via helicopter for acute dyspnea. Which of the following actions is MOST appropriate to address this patient's condition?
Initiate an intravenous line and administer a fluid bolus.
Check the patient's blood glucose level.
Administer oxygen via a non-rebreather mask.
Consider intubation for the patient if necessary.