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Giant cell arteritis — RCPSC IM MCQ

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EasyRheumatologyGiant cell arteritisRCPSC IM

A 74-year-old woman has new temporal headache, jaw claudication and transient visual blurring. ESR is 92 mm/h and CRP is 118 mg/L. Examination shows a tender reduced-pulse temporal artery. Visual acuity is currently preserved. What is the most appropriate investigation?

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Correct answer: E — Temporal artery ultrasound or biopsy after starting glucocorticoids

Diagnostic confirmation of suspected giant cell arteritis is by temporal artery ultrasound or biopsy, but glucocorticoid treatment should begin immediately when vision is threatened or suspicion is high.

Reference: Canadian Rheumatology Association vasculitis resources