| Catalog Number |
21341 |
| Medical Device Problem Code |
Incorrect, Inadequate or Imprecise Result or Readings (1535)
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| Health Effect - Clinical Code |
No Patient Involvement (2645)
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Type of Reportable Event
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Malfunction
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Additional Manufacturer Narrative
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An internal investigation was performed.The internal biomérieux cap d-09 (2018) survey strain was subcultured to tsab and macconkey agar and incubated to 35-37°c for 20-22 hours.A second subculture was performed and testing included individual organism suspensions with gn cards from four different gn card lots in duplicate as well as vitek ms.(b)(4) (biomerieux internal cap d-09 strain): the strain grew on mac agar as a non-lactose fermenting isolate.All eight gn cards tested resulted in low discrimination identifications of acinetobacter lwoffii/moraxella group.Vitek ms resulted in an identification of acinetobacter lwoffii with a 99.9% confidence value.As a.Lwoffii was part of the low discrimination call on all gn cards tested, vitek 2 cards are performing as expected.No further action is required.Some customers associated with this internal strain investigation reported misidentifications when testing this strain with the vitek 2 nh card, however the nh card knowledge base does not include a.Lwoffii as a claimed species so either an unidentified result or misidentification may occur.The following limitation is contained in the product labeling: testing of unclaimed species may result in an unidentified result or a misidentification.
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Event or Problem Description
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A customer in the united states reported a misidentification of an acinetobacter lwoffii survey sample (d-9) as moraxella group in association with the vitek® 2 gn id test kit.The customer tested the sample on the vitek gn id card, and obtained an identification of moraxella group, when the expected result was acinetobacter lwoffii.
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Search Alerts/Recalls
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