The One Lambda™ LABScreen™ Multi assay is a screening tool for antibodies against both human leukocyte antigen (HLA) and human neutrophil antigen (HNA). Antibodies against HNA are implicated in a variety of clinical conditions, including transfusion-related acute lung injury (TRALI).* Using microbeads coated with purified Class I or Class II HLA or HNA, and pre-optimized reagents, the LABScreen Multi assay qualitatively measures the presence of HLA and HNA antibodies in a human serum or plasma sample. * This product is not associated with the diagnosis or treatment of TRALI.