Reportedly, post repair, the bio med was called into the icu because the ventilator in room 17 was alarming and giving the wrong oxygen % to a patient.The ventilator in room 17 assumed the air was 20.9% oxygen and the oxygen was 100%.When the wall air was a higher percentage than that, the gas delivered to a patient had too much oxygen.It alarmed.The bio med identified that two rooms down, in room 15, the recently installed blender (sn (b)(4)) had caused this due to a valve failure.The blender in room 15 was disconnected and the ventilator in room 17 began delivering the correct oxygen percentages to the patient.The turned the alarm off.A different blender was put in room 15 and there were no longer any issues.There was no report of patient harm.The bio med reported to have performed a check valve test on the complaint device by putting the oxygen hose to the wall and putting the air hose into water and it blew some bubbles.The bio med removed the air and oxygen outlet fittings off the blender and found the spacer for the air side was in upside down.The bio med reversed it and the device worked great.No additional information is available.
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