Customer should not have restored the quality control and run patient samples when the automatic quality control(aqc) level 2 and level 3 failed on the instrument.Customer indicated that during the time that the ph had been restored, 3 samples with ph results were run and reported.Siemens representative requested customer to check and determine if ph results were questioned and if patient treatment was affected.Customer has not responded back at this point.Customer spoken to the siemens representative about the "restore qc" feature and changed the security assignment for all routine operators to level 4 in a restricted system so they will no longer have access to the feature.The event has occurred due to an operator error.
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