Surgical patient in the icu was on a high flow nasal cannula.Respiratory therapist noticed, while changing the water bottle on the patient's high flow nasal cannula set up, the water concha column malfunctioned, sending water at 50l/min into the patient's nares.In an effort to prevent this from occurring, as this has happened before, patient was removed from high flow system altogether prior to changing the water bottle and placed on 100% o2 non-rebreather mask.The respiratory therapist monitored the water concha for roughly 5 minutes before placing the nasal cannula back on the patient.After leaving the room, less than 5 minutes later, the patient began yelling for help as water was coming through the high flow system and shooting up her nose.Patient's spo2 desaturated to roughly 60%.Rn removed high flow system from patient and placed on non-rebreather mask.After roughly 10 minutes, patient's spo2 returned to normal limits.System was pulled completely from patient's room and replaced with new system with the older style concha.Malfunctioning concha has been saved and given to respiratory administration.
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