A 40-year-old male complains of exquisite pain and tenderness over the left ankle. There is no history of trauma. The patient is taking a mild diuretic for hypeension. On exam, the ankle is very swollen and tender. There are no other physical exam abnormalities. The next step in management is
Begin Colchicine and broad-spectrum antibiotics Obtain uric acid level and perform ahrocentesis Begin allopurinol if uric acid level is elevated Obtain ankle x-ray to rule out fracture