ANCA/MPO/PR3 Antibodies

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Also known as: ANCA Antibodies; c-ANCA; p-ANCA; Serine Protease 3; MPO; PR3; Anticytoplasmic Autoantibodies; 3-ANCA; PR3-ANCA; MPO-ANCA
Formal name: Antineutrophil Cytoplasmic Antibodies; Myeloperoxidase Antibodies; Proteinase 3 Antibodies
Related tests: Autoantibodies; FBC; ESR; Urinalysis, complement

At a Glance

Why Get Tested?

To test for certain autoimmune disorders, specifically small vessel vasculitities such as Granulomatosis with polyangitis (GPA formerly known as Wegners Granulomatosis (WG), microscopic polyangitis (MPA), Churg-Strauss Syndrome and a few others

When to Get Tested?

When your doctor thinks that you have symptoms, such as a vasculitic rash or respiratory/renal symptoms that may be due to a vascular autoimmune disorder; In patients who are known to have antineutrophil cytoplasmic antibodies (ANCA) associated small vessel vasculitis, ANCA measurement is sometimes used to monitor response to therapy

Sample Required?

A blood sample taken from a vein in your arm

Test Preparation Needed?