Review Question - QID 212557

A 64-year-old man is brought to his primary care physician by his daughter for forgetfulness. The patient’s daughter reports that over the past 2 weeks the patient has become more confused. He did not remember to pick up his car from the body shop last week, and yesterday, he did not show up to his grandson’s birthday party. When she went over to the patient’s house to check on him, she noticed the mailbox was stuffed with unopened letters. The patient says “I’m fine. I just have a headache.” The patient’s daughter adds, “I just hope you’re not drinking again dad. Your neighbor saw you fall outside the house a few weeks ago, and the other day you said you were nauseous and vomited.” The patient’s medical history is significant for a history of alcohol abuse, hypertension, hyperlipidemia, and atrial fibrillation. He takes aspirin, amlodipine, metoprolol, atorvastatin, and warfarin. He smokes cigars, but denies alcohol use since he started psychotherapy 7 months ago. The patient’s temperature is 97°F (36.1°C), blood pressure is 144/92 mmHg, and pulse is 82/min. On physical examination, there is a 3 cm ecchymosis on the right scalp. No focal neurological deficits are appreciated. Gait is normal. An initial complete blood count shows normocytic anemia. The patient’s INR is 2.5. Imaging is pending. Which of the following is a treatment option for the patient’s most likely diagnosis?