The customer obtained a non-reproducible, lower than expected vitros glu result for one patient sample run on a vitros 5600 chemistry system.Patient sample = 3.2 mmol/l versus expected 11.4 mmol/l.Biased results of the direction and magnitude observed may lead to inappropriate physician action.The affected results were reported outside the laboratory; however, a corrected report was issued once repeat testing was complete.There was no allegation of patient harm as a result of this event.This report corresponds to ortho clinical diagnostics inc.(b)(4).
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The investigation determined that a non-reproducible, lower than expected vitros glu result was obtained for one patient sample run on a vitros 5600 chemistry system.The investigation was unable to determine a definitive root cause.The investigation determined that the vitros 5600 chemistry system was operating as expected at the time of the event.There was no evidence of a vitros glu reagent malfunction based on review of recent quality control data.Pre-analytical sample handling and an (b)(6) lab automation routing issue were ruled out as contributing factors.Outside of the one patient sample in question, no further issues have been noted with vitros glu performance at this customer site.
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