ARCHITECT CA 19-9XR Reagent Kit; ARCHITECT CA 19-9 Reagent Kit, list 291-20 (4 x 100 tests), 2K91-25 and 2K91-27 (1 x 100 tests); Product Usage: The ARCHITECT CA 19-9XR assay is a chemiluminescent microparticle immunoassay (CMIA) for the quantitative determination of 1116-NS-19-9 reactive determinants in human serum or plasma on the ARCHITECT i System. The ARCHITECT CA-19-9XR assay is to be used as an aid in the management of pancreatic cancer patients in conjunction with other clinical metho

The firm, Abbott Laboratories, sent a "Product Recall Immediate Action Required" letter dated May 30, 2012 to all Architect CA 19-9XR customers who received the affected reagent lots. The customers were directed to immediately discontinue use and destroy any remaining inventory of the lots listed; to review the patient results obtained with the affected lots with the treating physician or heath care provider to ensure they are aware of the potential analytical issue and can determine whether re-evaluation of the patient is necessary; to forward a copy of the letter to any laboratory to whom they may have forwarded the reagent; and to retain a copy of the letter for their records and to complete and return the Customer Reply Form via fax to: 1-800-777-0051 or e-mail: QAGCO@abbott.com. For questions were call your local Customer Service representative or call the field action coordinator at 847-938-1923.