The customer observed falsely depressed architect free psa for three patients.The following data was provided: (unit of measure = ng/ml) sample (b)(6) initial= 0, and repeat 0.681.Sample (b)(6) initial= 0, and repeat 0.349.Sample (b)(6) initial= 0, and repeat 0.080.No impact to patient management was reported.
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The complaint investigation for falsely depressed free psa results included a search for similar complaints, and review of result logs, trending data, labeling, and device history records, and in-house testing.Return testing was not completed as returns were not available.Trending review did not identify any trends for the complaint issue.Device history record review on lot 07193fn00 did not show any potential non-conformances, or deviations.Labeling was reviewed and found to adequately address the issue under review.Accuracy testing was performed using in-house retained kit of lot 07193fn00.All specifications were met indicating that the lot is performing acceptably.Based on the investigation, no systemic issue or deficiency of the architect free psa assay, lot number 07193fn00 was identified.
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