In a case of glomerulonephritis (GN) , C3 is normal in all the following except?: (A) Diffuse lupus nephritis, (B) Good pasteur's syndrome, (C) IgA nephropathy, (D) HSP
Answer is A. Low C3 nephritis is observed in: Post-infectious GN, MPGN(Membranoproliferative GN) SLE Subacute bacterial endocarditis Cryoglobulinemia, shunt nephritis