Short for Pulse Oximeter.
A PO is a device used to monitor the oxygen in a patient's blood. It shines light through a patient's finger, toe, nose, earlobe, or the patient's forhead, and another sensor
on the other side of
the light wave measures how the light is being
absorbed.
1. He's on a PO machine, and they are going to
have to put hom on the
ventilator, because his oxygen is 85 so he is having
another set of desat episodes.