The investigation determined that a non-reproducible, lower than expected vitros crea result was obtained from a single patient sample using vitros crea slides lot 1509-3459-7053 on a vitros 5,1 fs chemistry system.The investigation was unable to determine a definitive assignable cause.No vitros crea slide performance issues are indicated based on the historical crea quality control data.An instrument related event has been ruled out as a contributing factor as vitros within run precision testing was within the acceptable guidelines.Pre-analytical sample processing could not be ruled out as a contributing factor.It is possible that cellular debris, due to poor sample preparation, was present in the affected sample, although this could not be confirmed.The assignable cause is unknown.
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A customer observed a non-reproducible, lower than expected creatinine result obtained from a single patient sample when using vitros creatinine (crea) slides on a vitros 5,1 fs chemistry system.The magnitude of bias observed exceeded the crea potential health and safety criteria when compared to the expected crea patient result.Vitros crea = 31 umol/l versus expected 262, 258 umol/l.Biased results of the magnitude and direction observed may lead to inappropriate physician action if the event were to occur undetected.The lower than expected crea result was reported outside of the laboratory; however, a physician questioned the result and a corrected report was subsequently issued for the sample after repeat testing.There was no allegation of actual patient harm as a result of this event.This report corresponds to ortho clinical diagnostics (ortho) inc.Complaint numbers 31981451 / qerts record id 414237.
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