A united states (us) customer contacted a siemens customer care center (ccc) and reported that a falsely depressed carbon dioxide (co2) result was obtained on a patient sample on a dimension vista 1500 system.Siemens healthcare diagnostics headquarters support center (hsc) concluded the investigation of the event.Hsc evaluated the information provided by the customer and reviewed the field service report (fsr).A siemens customer service engineer (cse) was dispatched to the customer's site.The cse performed a co2 precision study, and the results were acceptable.The customer recalibrated the co2 assay, performed an integrated multisensor technology (imt) advance clean, and replaced the sensor.Quality control (qc) recovered within the customer's expected ranges.Hsc concluded that the probable cause of the falsely depressed co2 result was due to the calibration.The issue was resolved by recalibrating the reagent lot.The customer is operational.The device is performing within specifications.No further evaluation is required.
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