The customer contacted siemens to report that flagged d-dimer test results (an m flag signifying a result >20) were obtained from a non-siemens instrument and were transmitted to a non-siemens aptio automation data management system (dms).The dms sent a result of 0 (zero), and no m flag, to upstream middleware and a laboratory information system (lis).The customer indicated that this scenario occurred on three patients who later expired.The laboratory's hematologist stated the d-dimer test results did not cause the patients' expiration.Statements and actions attributed to the customer are derived from information submitted to the siemens complaint handling system and haven't been verified.The legal manufacturer, inpeco sa, filed mdr 30108257766-2021-00008 with the fda on 12-jul-2021.
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