Continuous renal replacement therapy (crrt) machine alarmed for excessively negative return pressure as if the patient had been disconnected from the machine, patient remained connected however.Alarm would not resolve, then suddenly alarmed for filter pressure despite the filter being brand new and having just been changed 10 minutes prior.Unable to return blood.227 blood remained in the filter.Hemoglobin (hgb), on labs following event, showed no change in hgb level.Manufacturer response for baxter prismax crrt machine, prismax (per site reporter) user facility has been working closely with baxter including multiple site visits for over two and a half years in an attempt to identify the problems and fix the problems.
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