The investigation determined that a lower than expected vitros creatinine (crea) result was obtained from a single patient sample tested on a vitros 5600 integrated system, when compared to the result from a non-vitros method.The investigation was unable to determine a definitive assignable cause.However, an unknown sample interferent that affects the vitros assay, but not the non-vitros method, is the likely cause of the event, but this could not be confirmed.The historical quality control data review indicates the vitros crea slides were performing as intended on the vitros 5600 system, therefore, it is not likely a reagent or instrument issue contributed to the event.Ongoing tracking and trending of complaint data has not identified any signals to suggest there is a systemic quality issue with vitros crea slide lot 1515-3481-0816.A definitive assignable cause for the event could not be determined.
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A customer obtained a lower than expected vitros creatinine (crea) result from a single patient sample tested on a vitros 5600 integrated system, when compared to the result from a non-vitros method.Patient sample crea result of 40.5 umol/l vs.The expected result of 192.7 umol/l biased results of the direction and magnitude observed may lead to inappropriate physician action if undetected.It was unknown whether the lower than expected vitros crea result was reported outside the laboratory.However, there was no allegation of actual patient harm as a result of this event.This report corresponds to ortho clinical diagnostics inc (ortho).Complaint numbers (b)(4).
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