Review Question - QID 212774

A 19-year-old woman is brought to the emergency department for confusion and altered mental status. She is currently a junior at the local university, and her roommate reports that the patient complained of headaches and muscle soreness yesterday. She had 1 episode of emesis this morning and has “seemed out of it" since that time. The roommate reports that they just returned from a hiking and camping trip in Colorado 2 days ago. Her temperature is 101°F (38°C), blood pressure is 85/48 mmHg, pulse is 103/min, respirations are 21/min, and oxygen saturation is 98% on room air. A physical examination demonstrates an obtunded patient with skin findings shown in Figure A that do not blanch. What is the most appropriate treatment for this patient?