A siemens customer service engineer (cse) was dispatched to the customer's site.The cse performed a total service call.The cse found a building up of serum around the sample port area on the incubation ring.The ring cover was cleaned.The cse ran quality control (qc), resulting in range.The cause of the discordant, falsely positive (b)(6) virus total antibodies results is unknown.The instrument is performing according to specifications.No further evaluation of the device is required.
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Discordant, falsely positive (b)(6) virus total antibodies (havt) results were obtained on three patient samples on an advia centaur xp instrument.The initial results were reported out to the physician(s).The customer repeated the same samples on the same instrument, resulting negative.Corrected reports were issued to the physician(s).There are no known reports of patient intervention or adverse health consequences due to the discordant, falsely positive (b)(6) virus total antibodies results.
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