17th January 2024

A 57-year-old woman attends the rheumatology clinic for a review of her newly diagnosed GPA.

A 57-year-old woman attends the rheumatology clinic for a review of her newly diagnosed GPA. She initially presented with several upper and lower respiratory tract symptoms, painless haematuria and weight loss. Which of the following investigation results would be LEAST supportive of a diagnosis of GPA in this patient? 

Select the SINGLE most appropriate option from the list below. Select ONE option only.