Siemens has completed the investigation.Instrument files were reviewed.Absence of any drifts in glucose and thb sensors slope, flagged question result, or any related errors for glucose and thb sensors suggests the reported sensors were stable and performing normally as expected.Co-oximetry optical subsystem responsible for the measurement of thb appeared stable.No co-ox interference was detected.According to the customer, there was one day delay between sample collection and its analysis.A prolonged delay in sample collection and analysis can impact glucose and thb levels due to glucose and hemoglobin degradation over time which may have attributed to producing discrepant low results.Definitive root-cause for the sample discrepant low glucose and thb results is undetermined.
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