Unique identifier (udi) #(b)(4).This event occurred in (b)(6).On (b)(6) 2021, the field service representative retested the patient sample and the result was (b)(6).A numerical result value was not provided.The patient's sample was requested for investigation, but the sample material could not be provided.The investigation did not identify a product problem.The cause of the event could not be determined.
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The initial reporter received (b)(6) elecsys hiv combi pt results for 1 patient sample on a cobas 6000 e601 module, serial number (b)(4).On (b)(6) 2021, the patient sample was found to be (b)(6).On (b)(6) 2021, a pcr confirmatory result for the patient was (b)(6).The repeated result from the same sample was (b)(6).It is unknown if the repeated result was an hiv combi pt result or from a pcr.The (b)(6) results were reported outside of the laboratory.(b)(6).
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