The samples were judged "positive" with multiple flags, including the thrombocytopenia flag.The sysmex xn-1000 instructions for use (ifu), chapter 11 - checking detailed analysis information (data browser), section 11.6 - ip messages, details the method in which the analyzer conveys its findings.Results without an error message are categorized as "positive" or "negative" based upon preset criteria, some of which are user-defined.The system bases judgments on comprehensive surveys of numerical data, particle-size distributions, and scattergrams.Flags and messages, communicated through ip messages, indicate the analyzer's findings and notify the user of possible sample specific abnormalities.The analyzer alerted the operator to possible sample abnormality requiring verification prior to reporting of results.The initial analysis was limited to cbc+diff testing.Analysis through additional channels exposes the sample to more of the proprietary algorithms within the analyzer, and may better discern between cell and particle types.Chapter 15 - technical information, section 15.4.2 - analysis parameters and channels, discusses the differences between the channels.The plt-f channel is used to measure platelets with accuracy; primarily low platelet counts.Settings can be changed to indicate when the sample is to be repeated using the plt-f channel.Root cause is undetermined.No analyzer deficiency was identified.The user failed to verify suspect results.
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