High frequency jet ventilator cycled off to standby mode and made a loud noise consistent with pressure relieving.Equipment was removed from patient and sent to biomed.Found that the jet ventilator on a patient was exceeding the pressure ordered and was releasing the pressure which caused the loud noise.The ventilator was removed from patient bedside and bio med was consulted.Equipment was checked out by bio-med.It was discovered the ventilator sensed a pressure above the ordered value and dumped the excessive pressure causing the noise associated with the what the respiratory therapist.Biomed sent rental unit back to bunnell to be serviced.
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