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An internal biomérieux investigation was initiated when a customer reported a misidentification of klebsiella pneumoniae as methylobacterium spp or unidentified when using the vitek 2 gn card lot # 2410348203 and using vitek 2 software version 8.01.The strain was from an eqa survey and identified by maldi (bruker).Strain and raw data not available.The customer reported setting up the strain from columbia blood agar that incubated for 20+/-2 hrs at 37c.Mcfarland was prepared within range and saline was sterile.The last pm of the system had been performed in jan-2018 and not due until jan-2019; however, a pm was performed on the system at the time of the complaint investigation, and all issues were resolved.Two lab reports were submitted showing a result of non or low reactive biopattern.One lab report had no positive reactions, and the other only had one positive reaction.There were 30 atypical negative reactions (ado, pyra, dcel, bgal, dglu, ggt, bglu, dmal, dman, bxyl, proa, ple, tyra, ure, dsor, sac, dtre, cit, mnt, llatk, suct, agal, phos, glya, ldc, lhisa, o129r, lmlta, llata) for an identification of k.Pneumoniae according to the gn knowledge base.Two lab reports were submitted showing an identification of methylobacterium spp.Both lab reports had only one positive reaction.There were 29 atypical negative reactions (ado, pyra, dcel, bgal, dglu, ggt, bglu, dman, bxyl, proa, ple, tyra, ure, dsor, sac, dtre, cit, mnt, llatk, suct, agal, phos, glya, ldc, lhisa, o129r, lmlta, llata) for an identification of k.Pneumoniae according to the gn knowledge base.Atypical negative reactions can indicate a strain with decreased viability, user set up error or an atypical strain.Since the issue corrected upon pm of the instrument, it appears that the instrument contributed to the misidentification.However, without the strain or raw data, it's not possible to further evaluate the cause of the misidentification.The vitek 2 gn id card lot# 2410348203 met final qc release criteria.This lot passed qc performance testing.
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