The customer contacted the siemens customer care center (ccc) because of (b)(6) inconsistent patient results.A siemens customer service engineer (cse) was dispatched to the customer's site.While troubleshooting the instrument, the cse performed a total service visit including preventive maintenance.The cse replaced the sample syringe.The cse ran quality control (qc), resulting within specification.The cse ran patient samples comparison prior to and after maintenance service, resulting satisfactory following service maintenance.The cause of the inconsistent rubella igg results is unknown.The instrument is performing according to specifications.No further evaluation of the device is required.Mdrs 2432235-2017-00493 and 2432235-2017-00499 were filed for the same event.
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One patient sample tested (b)(6) for (b)(6)on an advia centaur cp instrument.The positive result was reported to the physician(s).Two days later, the sample was repeated four times, resulting positive once and negative three times.It is unknown which result is correct.There are no reports of patient intervention or adverse health consequences due to the inconsistent rubella igg results.
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