Description
Why It’s Done:
This test is ordered to:
• Diagnose and help monitor vasculitis disorders, such as granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA)
• Evaluate symptoms such as unexplained inflammation, kidney problems, respiratory issues, or systemic symptoms that suggest autoimmune vasculitis
• Assist in differentiating types of autoimmune diseases involving blood vessels
Preparation:
• No special preparation is needed.
• Blood is drawn from a vein, typically in the arm.
• Inform your healthcare provider about any medications or conditions that might affect immune response.
• Fasting is not required.
