A 58-year-old man has a transient episode of left arm weakness and slurred speech lasting 20 minutes that completely resolves. CT head is normal. What is the most appropriate strategy to reduce his short-term stroke risk?AReassure and discharge without treatmentBStart acetylsalicylic acid and arrange urgent vascular workupCStart warfarin empirically for presumed cardioembolismDStart high-dose corticosteroidsEDelay investigations for 3 months to see if symptoms recurCheck my answer