Medicine – MCQ 32 – C- ANCA positivity

C- ANCA positivity indicates antibody formed against
A. Proteinase 3
B. Myeloperoxidase
C. Cytoplasmic antinuclear Antibody
D. Anti centromeric Antibody

Correct answer : A. Proteinase 3

Proteinase 3 is the major C ANCA antigen.

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