This test consists of qualitative estimation of 14 antibodies against different Nuclear Antigens (IgG). It may be used to diagnose various Autoimmune disorders. These antigens are : nRNP/Sm, Sm, SS-A, Ro-52, SS-B, Scl-70, PM-Scl, Jo-1, CENP B, PCNA, dsDNA, Nucleosome, Histone, Ribosomal P-Protein & AMA-M2.