A 34-year-old male patient with HIV disease presents to the walk-in clinic of the emergency department with pain and blurry vision in his right eye. A dilated ophthalmoscopic exam of the right eye reveals a diffuse retinitis. What is the most appropriate treatment for this patient?

A 34-year-old male patient with HIV disease presents to the walk-in clinic of the emergency department with pain and blurry vision in his right eye. A dilated ophthalmoscopic exam of the right eye reveals a diffuse retinitis. What is the most appropriate treatment for this patient?

A 24-year-old man complains of night sweats, weight loss, and pruritus over several weeks. Physical exam shows nontender lymphadenopathy. A lymph node biopsy reveals Reed-Sternberg cells. He is started on a chemotherapy regimen including one drug that works primarily by trapping cells in the mitotic (M) phase of the cell cycle. Which drug is this?

A 22-year-old sexually active man presents to the ambulatory care clinic with dysuria, penile discharge, and a swollen right knee. A joint aspirate of his right knee reveals many neutrophils as well as some gram-negative diplococci. Which is the best choice to treat his condition?

A 22-year-old African American man who is a college student plans to travel to Africa for a semester of study abroad. A university student health physician prescribes chloroquine for malaria prophylaxis starting 2 weeks before the trip. Soon after starting the regimen, the patient develops scleral icterus. What is the most likely underlying cause for the icterus?

A 64-year-old man who has a history of transient ischemic attacks is taking clopidogrel. He presents to his primary care physician for follow-up. Which of the following should the primary care physician be concerned about in this patient?