A 67-year-old woman reports new headaches, scalp tenderness, and jaw fatigue while chewing

A 67-year-old woman reports new headaches, scalp tenderness, and jaw fatigue while chewing. ESR is elevated. What is the most appropriate immediate intervention? geoquad Begin high-dose corticosteroids and refer to ophthalmology geoquad Prescribe NSAIDs and recheck in 48 hours geoquad Order head CT and monitor symptoms geoquad Recommend acetaminophen and hydration