Review Question - QID 102991

A 35-year-old woman comes into the emergency room with complaints of fatigue. She states that over the last few days, she has been feeling tired and has had some bleeding in her mouth. She also states that she has started seeing "red dots" on her legs as illustrated in Figure A. She denies any cough, congestion, fever, diarrhea, headaches, or changes in urine production. On her exam, she has petechiae on her lower extremities. Her vitals are within normal limits. Her CBC is significant for WBC 7,500, Hgb 11.9, Hct 37, Platelets 29,000. Her LDH level is normal and her peripheral blood smear is shown in Figure B. What is the first line of treatment for this patient?