Quest EIA ANA Screen Bulk Kit, model number 96AN-BPU-QUEST. Manufactured by Bio-Rad Laboratories, Inc., Hercules, CA. For labeling and distribution by Quest International Inc. || Medical device is used as a qualitative enzyme immunoassay (EIA) intended to screen for the presence of antinuclear antibodies (ANAs) in human serum as an aid in the diagnosis of certain rheumatic diseases. This assay collectively detects, in one well, total ANAs against double stranded DNA (dsDNA, nDNA), histones, SS-A/Ro, SS-B/LA, Sm, Sm/RNP, Scl-70, Jo-1 and centromeric antigens along with sera positive for Immunofluorescent (IFA) HEp-2.