Anti-Myeloperoxidase (MPO) Antibodies

What is the Anti-MPO Autoantibodies Serum test?

This blood test detects antibodies directed against myeloperoxidase (MPO), an enzyme found in certain white blood cells, which are implicated in autoimmune vasculitis.


Why is this test done?

It helps diagnose ANCA-associated vasculitis conditions such as microscopic polyangiitis or eosinophilic granulomatosis with polyangiitis (Churg-Strauss syndrome).


How is the test performed?

A blood sample is analyzed using immunofluorescence or ELISA techniques to determine the presence of MPO-specific antibodies.


What do the results mean?

A positive result supports the diagnosis of autoimmune small-vessel vasculitis, particularly when clinical symptoms and other lab findings align.


Are there any precautions or preparations required?

There are no specific preparations required for this test.