Respironics WristOx Operator's Manual page 43

Problem
No pulse display on
bargraph, cont'd.
Possible Cause
Possible interference from:
• arterial catheter
• blood pressure cuff
• electrosurgical procedure
• infusion line
Reduced circulation from
excess pressure on sensor.
Excessive ambient light.
Sensor applied to polished
or artificial nail.
Possible Solution
Reduce or eliminate interference.
Allow hand to rest without squeez-
ing or pressing sensor.
Shield sensor from light source.
Apply sensor to finger without fin-
gernail polish or an artificial nail.
43