Reagent, prepared from human serum, intended for use as an unassayed precision control for determination of the following autoantibodies: Anti-double stranded deoxyribonucleic acid – Level 2 DNA* ,Anti-ribosomal antigen Ribo ,Anti-centromere antigen CENP-B ,Anti-histidyl tRNA synthetase antigen Jo-1 ,Anti-scleroderma antigen - 70 kDA Scl-70 .
A material which is used to verify the performance of an assay intended to be used for the qualitative and/or quantitative screening for multiple types of antibodies to extractable nuclear antigens (anti-ENA) in a clinical specimen.