Catalog Number 10484765 |
Device Problem
False Negative Result (1225)
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Patient Problem
No Clinical Signs, Symptoms or Conditions (4582)
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Event Date 12/19/2021 |
Event Type
malfunction
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Manufacturer Narrative
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The customer stated that visual microscopy of the sample showed it to be highly turbid with a lot of neutrophils and bacteria.The customer did not provide the results of the other analytes on the strip however, based on their description the sample likely had a high specific gravity.Per siemens customer facing documentation, "it has been observed that higher urine specific gravity may sometimes cause decreased leukocyte test results".Siemens has requested additional information however the customer has not responded.
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Event Description
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The customer reported a false negative leukocyte result from their clinitek advantus instrument compared to repeat testing by visual microscopy.There is no report of injury due to this event.
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Manufacturer Narrative
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The customer stated that the reagent is not available for return for investigation.Siemens has reviewed the certificate of analysis of the lot in question.The lot was meeting specifications at the time of manufacturing release.The customer is operational.The cause of this event is unknown.
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Search Alerts/Recalls
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