An area technical operations manager (atom) for a user facility reported that the fresenius 2008t hemodialysis (hd) machine was giving arterial pressure, venous pressure, and transmembrane pressure (tmp) alarms during patient treatment.The arterial drip chamber would run low or out of blood and the venous chamber would overfill and wet the venous transducer.The patient¿s blood clotted in the venous chamber, resulting in blood loss.There was no patient injury or adverse reaction reported.The patient¿s blood was returned and the staff changed the venous line and the patient completed treatment.The dialyzer is primed at 150ml/min.The machine is set-up with bloodlines and the venous chamber is primed.The arterial and venous transducer lines are clamped and hung from the pressure ports with the transducers attached.The machine self-test runs and when the patient arrives, the arterial and venous transducer lines are attached to the pressure ports and the hansen lines are connected to the dialyzer where the priming is completed.The dialyzer is inverted during the priming of the circuit.Following the event, the machine was removed from service for evaluation.The atom has troubleshooted the machine but has not identified the source of the issue.The machine continues to have the issue.The machine is currently in use at the user facility.No parts are reported to be available to be returned to the manufacturer for evaluation.No further information has been made available at this time.
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