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PR3 - ANCA ( C-ANCA )

The PR3-ANCA (C-ANCA) test checks for antibodies against an enzyme called proteinase 3, found in certain white blood cells. These antibodies are often linked to autoimmune diseases, especially granulomatosis with polyangiitis (GPA), a condition that causes inflammation in blood vessels. The test helps doctors diagnose and monitor such conditions, especially when symptoms like sinus issues, lung problems, or kidney trouble are present.

This page is informational and does not provide medical diagnosis or treatment advice. For medical concerns, please consult a qualified healthcare professional.