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General Medicine · Rheumatology: giant cell arteritis
Sample itemA 72-year-old woman has a two-week history of new temporal headache, jaw pain on chewing, scalp tenderness and one episode of transient blurring of vision. ESR is 98 mm in the first hour. What is the best next step?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. Start high-dose prednisolone immediately and arrange temporal artery biopsy
Giant cell arteritis is an ophthalmic emergency because untreated arteritis can cause permanent bilateral visual loss from anterior ischaemic optic neuropathy. High-dose glucocorticoids (about 40 to 60 mg prednisolone daily) are started at once, and biopsy within about 2 weeks is still diagnostic. Aspirin, bone protection and tocilizumab as a steroid-sparing option may follow.
Option by option
A. Wait for temporal artery biopsy results before any treatment
Delaying steroids risks permanent blindness, and biopsy stays positive for days to weeks after starting treatment.
B. Start high-dose prednisolone immediately and arrange temporal artery biopsy (correct)
Correct. Treatment must not wait for biopsy because blindness is irreversible.
C. Start prednisolone 10 mg daily
A low dose is inadequate to prevent vascular complications.
D. Start a triptan for migraine
A triptan would not treat vasculitis and would delay therapy.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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