The customer observed falsely elevated carbon dioxide (co2) results for 2 patients while running on the architect c8000 processing module.The following data was provided: on (b)(6) 2021 sid (b)(6): initial co2 result: 30.9 meq/l, repeat on another analyzer: 23.7 meq/l.On (b)(6) 2021 sid (b)(6): initial co2 result: 31.4 meq/l, repeat on another analyzer: 25.8 meq/l.There was no impact to patient management reported.
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The complaint investigation for falsely elevated carbon dioxide results included a search for similar complaints, and the review of complaint text, trending data, labeling, and device history records.Return testing was not performed as returns were not available.The lot search did not identify an increase in complaint activity for the current complaint issue.Trending was reviewed and did not identify any trends for the product for the issue.File sample analysis was not performed.As part of troubleshooting, the patient samples were tested on a different system and gave lower results.Quality control (qc) material that initially generated elevated results is now generating acceptable results and the complaint issue was reported to be resolved.The device history recorded was reviewed and did not identify any non-conformances or deviations.Labeling was reviewed and adequately addresses the issue under review.Based on the investigation, no systemic issue or product deficiency for carbon dioxide reagent lot 60106uq07 was identified.
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