User and Service Manual
EMU40EX™
57
Causes of Loss of Pulse Signal
•
Sensor is too tight.
•
Excessive illumination from light sources such as a surgical lamp, a bilirubin lamp, or sunlight.
•
Blood pressure cuff is inflated on the same extremity as the one with a SpO
2
sensor attached.
•
Patient has hypotension, severe vasoconstriction, severe anemia, or hypothermia.
•
Arterial occlusion is proximal to the sensor.
•
Patient is in cardiac arrest or is in shock.