A patient presents with cutaneous vasculitis, glomerulonephritis and peripheral neuropathy. What investigation is to be performed next for work up?: (A) ANCA, (B) RA factor, (C) HBsAg, (D) CRP
Answer is A. C-ANCA (Ag against which C ANCA is directed against is -Proteinase 3) P-ANCA - (Ag against which P ANCA is directed against is -MPO)