PF4 Concentrated Wash (10x), REF 403624, packaged in the following assay kits: 1. ImmucorGamma LIFECODES PF4 IgG (catalog numbers HAT13G, HAT45G) and 2. ImmucorGamma LIFECODES PF4 Enhanced (catalog numbers X-HAT13, X-HAT45) The PF4 IgG assay is an Enzyme Linked Immunosorbent Assay (ELISA). The PF4 IgG ELISA is intended to detect IgG antibodies in human serum that react with Platelet Factor 4 (PF4) when it is complexed to heparin or other polyanionic compounds. The PF4 IgG kit contains all of the reagents necessary to perform the assay.

Reason: Some Lots of PF4 Concentrated Wash (10X) are a slightly more dilute concentration. This may lead to slightly increased Optical Density (OD) values. Samples with a higher background reactivity may demonstrate false positive result (borderline reactivity) at or near the cutoff for the assay.

Code information: Reagent Lot Numbers: 3001620, 3001987, 3002083, 3002153

Distribution pattern: Worldwide Distribution - Nationwide Distribution to the states of : AL, AZ, AR, CA, CO, CT, DE, DC, FL, GA, IL, IN, IA, KS, KY, LA, ME, MD, MA, MI, MN, MS, MO, NE, NV, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SC, SD, TN,TX, UT, VA, WA, WV and WI., and the countries of : Canada, Japan, Belgium, European Union , Australia, Taiwan, Thailand and Scotland. ( some countries not yet identified )