The customer observed a false elevated alinity c creatinine result for a female patient.The customer reported the patient was treated acutely with an unspecified treatment.The following example results provided: (b)(6) 2022 sid (b)(6)= 576 umol/l.(b)(6) 2022 sid (b)(6)= repeat (1:10 dilution) 300 umol/l, repeat on second alinity in the lab 300 umol/l even though it was requested, no additional information regarding the acute treatment or patient harm was provided at this time.
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The complaint investigation for false elevated alinity c creatinine results included a review of data and information provided by the customer, search for similar complaints, ticket trending review, labeling review, device history record review, and field data review.Return testing was not completed as returns were not available.A review by a cross functional team found no medical status pertaining to the patient has been provided which otherwise might have contributed to elevated results.In absence of the patient's clinical history, treatment plan including medications list and additional laboratory investigations performed on the initial sample, it is not possible to find out if any potential preanalytical factors were evident that would have caused the initial result to be higher.The initial (576 umol/l) as well as the repeated results (300 umol/l), both are above the adult female reference range (50.4 - 98.1 umol/l) provided in the package insert.Since both the initial and repeat measurement results are outside of the reference range, irrespective of the results, same treatment would have been provided and hence needed immediate attention.A review of tracking and trending did not identify any trends for the complaint issue.Labeling was reviewed and found to adequately address the issue.Device history record review on lot 46980un22 did not show any potential non-conformances, deviations, or non-conformances associated with the complaint issue.Data from customers worldwide was used to assess the performance of the alinity c creatinine assay.The median patient result for lot 46980un22 is within established limits and comparable with other lots in the field, which indicates acceptable product performance.Based on the investigation, no systemic issue or deficiency of the alinity c creatinine assay for lot number 46980un22 was identified.All available patient information was included.Additional patient details are not available.
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