Respiratory therapist (rt) called to patient room because her o2 sats were dropping.Because the patient was on high flow nasal cannula (hfnc), rt decided to increase her oxygen/flow.As soon as the oxygen/flow was increased, an error message appeared on the screen saying: unplug oxygen and restart.The patient started complaining of shortness of breath (sob) and her o2 sats dropped to 80%.The patient was removed immediately from the device and placed on a 50% venti-mask.I disconnected the device and tried to restart it, but the error message remained on screen.At this time the patient oxygen levels failed to improved, so she was given oxygen therapy via manual resuscitation.The supervisor was called, and the device was removed and replaced.Manufacturer response for airvo - high flow oxygen, airvo (per site reporter): returned to the manufacturer for replacement by biomed.
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