Radioassay, Vitamin B12（CDD）

Beckman Coulter has received complaints of erroneous Vitamin B12 results when using Access Vitamin B12 Reagent lot 439850. The affected reagent lot may cause erroneously low or high Vitamin B12 results, leading to a delayed or improper diagnosis and/or repeat testing.

The adhesive joint between the plastic socket and metal component of the Power Express Sample Holder can fail, causing the metal part to detach and enter the centrifuge. This detachment can result in damage to the centrifuge and potential destruction of the patient sample resulting in delayed results and possible exposure of lab technician to biohazardous material.

The adhesive joint between the plastic socket and metal component of the Power Express Sample Holder can fail, causing the metal part to detach and enter the centrifuge. This detachment can result in damage to the centrifuge and potential destruction of the patient sample resulting in delayed results and possible exposure of lab technician to biohazardous material.

The adhesive joint between the plastic socket and metal component of the Power Express Sample Holder can fail, causing the metal part to detach and enter the centrifuge. This detachment can result in damage to the centrifuge and potential destruction of the patient sample resulting in delayed results and possible exposure of lab technician to biohazardous material.

Missing splash guard which may expose users to hazardous materials. .

The AIA-2000 bar code scanners depend on the quiet zone to help identify the bar code. The lack of an adequate quiet zone can cause the bar code scanner to confuse the bar codes with text or graphics resulting in the scanner ignoring a valid symbol. This results in an error in reading the barcode: Error Code 2220 Unable to read barcode on reagent bottle. In some cases, the quiet zone is too short and an error in barcode reading occurs. The problem is intermittent and not all vials (6 vials are available per set) have been reported to fail. The only risk to patients or users is a delay in results. The company recommends (optional) that customers pre-screen the vials to identify affected products. Customers can contact the company for reimbursement of any affected products. The company has implemented barcode checks as a temporary solution and will replace the barcode printer on the production line for products beginning with lot B*01898.

Potential for fluorescein interference to cause inaccurately elevated results for certain Tosoh AIA assays

The reagent pack exhibits the potential for an increased frequency of calibration failures.

Concentrations for the level of biotin that does not interfere is not currently listed in the instruction for use for the Dimension Vista CTNI, Dimension Vista MMB, Dimension Sirolimus, ADVIA Centaur FOL, ADVIA Centaur aHBcM and the following IMMULITE assays, 3gAllergy Specific IgE, anti-HBc, BR-MA (CA15-3), CEA, Folic Acid, Gastrin, OM-MA (CA125), Thyroglobulin, and Vitamin B12, and these assays are susceptible to interference from biotin.

Siemens Healthcare Diagnostics has confirmed that the presence of Intrinsic Factor Blocking Antibody in some patients can result in a false and significant elevation in the reported concentration of Vitamin B12 on the Dimension Vista System. This issue affects all lots of B12 Flex reagent cartridges on the Dimension Vista System.