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Pathology · Cardiovascular: giant cell arteritis
Sample itemA 72-year-old woman has a new temporal headache, scalp tenderness, jaw pain on chewing and an ESR of 95 mm in the first hour. She reports a transient episode of visual loss in the right eye this morning. What is the most appropriate next step?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
A. Start high-dose glucocorticoids immediately and then arrange temporal artery biopsy
Giant cell arteritis is a granulomatous vasculitis of large and medium arteries, mainly the temporal artery, and threatens permanent blindness through ophthalmic artery involvement. Treatment is started immediately on clinical suspicion because the biopsy remains diagnostic for some days after steroids begin. Biopsy shows granulomatous inflammation with giant cells and fragmentation of the internal elastic lamina, though skip lesions can give false negatives.
Option by option
A. Start high-dose glucocorticoids immediately and then arrange temporal artery biopsy (correct)
Correct. Immediate steroids protect vision, and biopsy can follow within days.
B. Wait for the temporal artery biopsy result before giving any treatment
Delaying treatment for the biopsy risks irreversible blindness in the second eye.
C. Arrange an elective ophthalmology review without treatment
Elective review ignores a sight-threatening emergency that needs same-day treatment.
D. Start aspirin alone and review in two weeks
Aspirin alone does not suppress the vasculitis and offers inadequate protection from visual loss.
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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