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Model Number FT4 G3 |
Device Problems
Incorrect, Inadequate or Imprecise Result or Readings (1535); Non Reproducible Results (4029)
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Patient Problem
No Clinical Signs, Symptoms or Conditions (4582)
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Event Date 03/02/2023 |
Event Type
malfunction
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Event Description
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The initial reporter stated they received discrepant results for one patient sample tested with elecsys tsh ver.2 and the elecsys ft4 iii assay on two cobas e 801 analytical unit analyzers.No questionable results were reported outside of the laboratory.This medwatch will apply to the ft4 assay.Please refer to the medwatch with a1.Patient identifier pt-80661 for information related to the tsh v 2 assay.Refer to the attachment for all patient data.The questionable values are highlighted.The patient sample was initially tested on the customer's e 801 analyzer on (b)(6) 2023 and was repeated using the abbott architect.The sample was provided for investigation, where it was tested using a second e 801 analyzer on (b)(6) 2023.The sample was also repeated using the fujirebio lumioulse analyzer on (b)(6) 2023.The serial number of the customer's e 801 analyzer was requested, but not provided.The ft4 reagent lot number and expiration date used on this analyzer were requested, but not provided.The serial number of the e 801 analyzer used for investigation is (b)(4).Ft4 reagent lot number 630888, with an expiration date of 31-may-2023 was used on this analyzer.
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Manufacturer Narrative
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Na.
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Manufacturer Narrative
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The investigation determined the differences in values relates to the differences in the setups of the assays, the antibodies used, and differences in the standardization materials and procedures used.For diagnostic purposes, the results should always be assessed in conjunction with the patient¿s medical history, clinical examination and other findings.The investigation could not identify a product problem.
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Search Alerts/Recalls
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