Potential health hazard — use of or exposure to this product may cause temporary or medically reversible adverse health consequences.
The Tina-Quant Myoglobin Gen. 2 Tests system is an immuno-turbidimetric Recalled by Roche Diagnostics Operations, Inc. Due to The firm conducted internal investigations that confirmed customer...
What You Should Do
Stop using this product immediately. Do not consume, use, or distribute it.
Return the product to the place of purchase for a full refund. If you have questions, contact Roche Diagnostics Operations, Inc. directly.
Affected Products
The Tina-Quant Myoglobin Gen. 2 Tests system is an immuno-turbidimetric assay for the quantitative in vitro determination of myoglobin in human serum and plasma on Roche automated clinical chemistry analyzers
Quantity: 4,309 (cobas c311-340 units;cobas c501-3,517 units;cobas c502 452 units
Why Was This Recalled?
The firm conducted internal investigations that confirmed customer complaints of quality control (QC) imprecision and calibration failures for the Tina-quant Myoglobin Gen.2 assay (catalog number 04580010190), lot number 349860 on the cobas c311 analyzer and cobas c501 and c502 modules due to a drop in signal in the reaction kinetics. This signal drop was traced to an adjacent cell mixing effect. Sample recovery is decreased as a consequence of the disturbance in reaction kinetics. The investigation found discrepancies of up to -30%. Calibration, QC, and patient samples can be affected. The following issues were reported: - Calibration failures; Dup.E error due to signal drop in reaction kinetics - Sporadic quality control (QC) imprecision. As a long-term solution, the firm will implement required extra wash cycles (EWCs) into the respective Special Wash Requirements method sheets for the cobas c 311 analyzer and cobas c 501 and 502 modules, and into the cobas e-file for the cobas c 502 module. For the use of the reagent with the cobas c501 and c502, Roche will also direct users to run the Tina-Quant Myoglobin gen. 2 assay independently from other tests, in a batch mode status, with a maximum of 39 samples per run. Additionally, a change in the application settings of the Tina-quant Myoglobin Gen.2 assay on the cobas c 501 and 502 modules will be implemented so that adjacent cuvettes are no longer used in order to prevent adjacent cell mixing effects. The application settings change will be communicated at a later date.
Where Was This Sold?
This product was distributed nationwide across all 50 states.
About Roche Diagnostics Operations, Inc.
Roche Diagnostics Operations, Inc. has 127 total recalls tracked by RecallDetector.
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Data sourced from the FDA (Device). Last updated March 26, 2026. View original report