Differential Diagnosis of Peripheral Cyanosis 

Peripheral cyanosis

The differential diagnosis of peripheral cyanosis / causes of peripheral cyanosis are :
-arterial occlusion
-cold exposure
-shock
-left ventricular failure
-Raynaud ‘s phenomenon
-cyanotic congenital heart disease ( right to left shunt)
-sulfhemoglobinemia 
-methemoglobinemia
-acute pneumothorax
-acute asthma
-acute left ventricular failure
-inhaled foreign bodies
-chronic obstructive pulmonary disease
-pulmonary embolism
-pneumonia
-fibrosing alveolitis