The customer received a questionable high elecsys ferritin result from cobas 6000 e 601 module serial number (b)(4) for one patient sample that was aliquoted by the modular preanalytic analyzer (mpa) serial number (b)(4).The initial result was 75114 mcg/l with a data flag.The repeat result on the same analyzer was 128.9 mcg/l and the result on another cobas 6000 e 601 module was 126 mcg/l.The erroneous result was reported outside the laboratory.The repeat result was believed to be correct.The patient was not adversely affected.The reagent lot number was 19215405 with an expiration date of 2/28/2018.The field service representative could not find a cause.He straightened the bead mixer, checked the fluidics, and ran precision testing with results within guidelines.Refer to the medwatch with patient identifier (b)(6) for the modular preanalytic analyzer (mpa).
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