The investigation determined that a higher than expected vitros crbm result was obtained from a single level of non-vitros biorad multiqual unassayed controls, lot 56720 tested on a vitros 5600 integrated system.The assignable cause of the event could not be determined.Pre-analytical sample mix-up is a potential cause of the event.Three biorad level 1 results were obtained using the calibration curve from which the higher than expected vitros crbm result of 7.42 ug/ml was obtained, and two of the three results were lower than expected.The customer stated pre-analytical sample mix-up did not occur, however, provided no evidence as to why it did not occur.Acceptable vitros crbm results were obtained using two different calibration events using slide lot 3914-0123-6585 without performing any actions to optimize vitros crbm performance, therefore, a slide-related performance issue did not likely contribute to the event.No diagnostic within-run precision testing was performed to assess the performance of the vitros 5600 integrated system, however, since acceptable vitros crbm performance was obtained using two different calibration events, an instrument related performance issue did not likely contribute to the event.Continual tracking and trending of complaints has not identified any signals that would point to a potential systemic issue with vitros product crbm slides, lot 3914-0123-6585.
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A customer contacted the ortho clinical diagnostics (ortho) technical solution center (tsc) to report a higher than expected vitros crbm result was obtained from a single level of non-vitros biorad multiqual unassayed controls, lot 56720 tested on a vitros 5600 integrated system.Biorad lot 56720 level 1 crbm result of 7.42 ug/ml vs.The expected result of 3.75 ug/ml biased results of the magnitude and direction observed may lead to inappropriate physician action if they were to occur undetected on patient samples.The higher than expected vitros crbm result was obtained from a non-patient quality control fluid, however, the investigation could not rule out that patient samples would be affected if the event were to recur undetected.There was no reported allegations of patient harm as a result of this event.This report corresponds to ortho clinical diagnostics inc (ortho) complaint number (b)(4) and reportability assessment (b)(4).
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