The initial reporter stated that they received an erroneous result for one patient sample tested with crep2 creatinine plus ver.2 on a cobas integra 400 plus.The erroneous result was not reported outside of the laboratory.The sample initially resulted with a crep2 value of 15.29 mg/dl.The sample was repeated twice, each time resulting with a value of 0.78 mg/dl.No adverse events were alleged to have occurred with the patient.The serial number of the integra 400 plus analyzer is (b)(4).The last calibration performed on 25-dec-2018 was ok.Quality controls between 08-mar-2019 to (b)(6) 2019 were within range, except for one level of control being outside of range on the date of the event.Upon review of the alarm trace, a message indicating no fluid detected occurred on (b)(6) 2019 and a message indicating missing system reagent occurred on (b)(6) 2019.The investigation could not identify a product problem.The cause of the event could not be determined.
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