The complaint investigation for falsely increased architect total psa lot unknown 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 of tracking and trending did not identify any trends for the complaint issue.Device history record review on the list number did not show any potential non-conformances, deviations, or non-conformances associated with the complaint issue.Customer field data was used to assess the performance of the architect total psa assay using worldwide data through abbottlink.The likely cause lot is unknown in this case, however review of the within date lots show that all median values are within ±2sd of the mean indicating that the lots are comparable and performing acceptably in the field.Labeling was reviewed and found to adequately address the issue.Based on the investigation, no systemic issue or deficiency of the architect total psa assay was identified.
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