The customer observed falsely elevated magnesium patient results generated using the architect c4000 analyzer.The following results were provided.The customer uses magnesium normal range 1.6 to 2.6 mg/dl.Patient 1, initial 8.6, repeat 1.9; patient 2, initial 9.0 repeat 1.9, 2.0.No impact to patient management was reported.
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An abbott field service representative (fsr) was dispatched to the account.The fsr replaced both the valve, poppet set (part 09d36-02) and bellows, bellows only (part 2-89054-02) during troubleshooting.Replacement of the valve, poppet set (part 09d36-02) resolved the customer issue and was designated by the fsr as the likely cause.Evaluation of the customer issue included a review of the complaint text, a search for similar complaints, a review of labeling, and a review of instrument service.No returns were made available from the customer site for this evaluation.No adverse trend was identified for the customer issue.Labeling was reviewed and found to be adequate.The issue was resolved through standard troubleshooting procedures.Based on all available information and abbott diagnostics complaint investigation, the analyzer performed as intended and no product deficiency was identified.
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