The patient cassette and a reusable co2 absorber were returned.No damages or deviations of the returned parts were noticed.The returned parts were tested in a reference anesthesia workstation.No deviations in measured fico2 compared to measured fico2 during tests with the reference system parts installed were noticed.According to the test log, a successful sco was performed on the morning on the event date.A successful sco was performed one day after the event when a new patient cassette had been fitted into the anesthesia workstation.The technical log has no recordings related to the event.The clinical alarms that were generated, show that high fico2 values were measured but we cannot determine the cause of the reported increased level of fico2 values.(b)(4).
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