A flagged non-numerical protein c result was obtained on a patient sample on a sysmex cs-5100 system, using the berichrom protein c reagent.The flagged result was reported to the physician(s).The sample was diluted in a 1:4 dilution and repeated on the same system, using the same reagent lot, resulting in a numerical protein c result.The repeat result was reported to the physician(s).On (b)(6) 2018, the sample was repeated again on the same system and reagent lot, resulting higher than the repeat result.The correct result for this patient is unknown.There are no known reports of patient intervention or adverse health consequences due to the different protein c results.
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