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Investigation: the run data file (rdf) was analyzed for this event.The analysis of the run data file did not identify a conclusive root cause for the higher-than-expected wbc content reported in the platelet product for this collection, however it is possible that higher-than-expected wbc content was a result of an escape of wbcs from the lrs chamber during portions of the procedure.The signals indicate that the device had difficulty maintaining steady state operation during the procedure, so it cannot be ruled out that the needle line access may have shifted and could potentially have impacted the collection.Based on the available information, it cannot be ruled out that the higher-than-expected wbc content in the platelet product may have been donor-related.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.Root cause: the analysis of the run data file did not identify a conclusive root cause for the higher-than-expected wbc content reported in the platelet product for this collection, however it is possible that higher-than-expected wbc content was a result of an escape of wbcs from the lrs chamber during portions of the procedure.The signals indicate that the device had difficulty maintaining steady state operation during the procedure, so it cannot be ruled out that the needle line access may have shifted and could potentially have impacted the collection.Based on the available information, it cannot be ruled out that the higher-than-expected wbc content in the platelet product may have been donor-related.
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