This report summarizes 1 malfunction event.Questionable high results were generated for the elecsys t4 assay on a cobas 8000 e 602 module.The event involved one patient sample.The patients' age was "approximately 50 years".The patient's weight was requested, but not provided.The patient is male.The patient's race was requested, but not provided.The patient's ethnicity was requested, but not provided.
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For the pending event, the patient's sample was provided for investigation.The investigation reproduced and confirmed the customer's t4 result.An interfering factor against a component of the reagent was identified.The interfering factor was streptavidin.Per labeling, "in rare cases, interference due to extremely high titers of antibodies to analyte-specific antibodies, streptavidin or ruthenium can occur.These effects are minimized by suitable test design.For diagnostic purposes, the results should always be assessed in conjunction with the patient's medical history, clinical examination and other findings." the investigation did not identify a product problem.The cause of the event could not be determined.
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