Differential Diagnosis of Common Causes of Error in Measuring Oxygen Saturation

 
Common causes of error in measuring oxygen saturation 

Differential diagnosis of common causes of error in measuring oxygen saturation / the causes of error in measuring in oxygen saturation are :

-improper placement of the probe
-nail polish
-movement
-intensive ambient light
-shock
-hypoperfusion
-MRI
-pigmentation of the skin 
-abnormal hemoglobin
-carboxyhemoglobin
-methemoglobin
-tricuspid valve incompetence
-venous congestion