Investigation: the device history records (dhr) were reviewed for this lot.There were no events noted in the dhr that would have contributed to the elevated wbc count experienced by the customer.The run data file (rdf) was analyzed for this event.Root cause: a definitive root cause for the observed leuko reduction failure remains undetermined at this time.The signals in the rdf indicate that the higher-than-expected wbc content in the platelet product was likely a result of an escape of wbcs from the lrs chamber during a portion of the procedure.Based on the available information, it cannot be ruled out that the higher-than-expected wbc content in the platelet product could be donor-related.
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