MSFinals-5962
A 65-year-old man visits his General Practitioner (GP) complaining of a swollen and painful first metatarsophalangeal joint that has been bothering him for a week. He reports that the pain became unbearable last night. The patient denies any fever or toe injuries. Upon examination, the joint appears red, swollen, and warm to touch. The patient has a history of gout, peptic ulcer, and is currently taking allopurinol 300 mg once a day for gout prophylaxis. What is the most appropriate next step in management?