The customer contacted the siemens customer care center (ccc).The customer ran quality controls, resulting with error flags.A siemens customer service engineer (cse) was at the customer site.After inspecting the instrument, the cse replaced the reagent probe 2 mix paddle, solenoid reagent probe valve 2, and lamp.The cse checked all valves.The customer ran quality control (qc), resulting acceptable.The cause of the discordant, falsely elevated po4 result is unknown.The instrument is performing according to specifications.No further evaluation of the device is required.
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A discordant, falsely elevated inorganic phosphorus (po4) result was obtained on a patient sample on an advia chemistry xpt instrument.The discordant result was not reported to the physician(s).The sample was repeated on an alternate instrument, resulting lower.The repeated result was reported to the physician(s).There are no reports of patient intervention or adverse health consequences due to the discordant falsely elevated po4 result.
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