Cyanosis
Decreased oxygen in the blood / From Wikipedia, the free encyclopedia
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Cyanosis is the change of body tissue color to a bluish-purple hue, as a result of decrease in the amount of oxygen bound to the hemoglobin in the red blood cells of the capillary bed.[1] Cyanosis is apparent usually in the body tissues covered with thin skin, including the mucous membranes, lips, nail beds, and ear lobes.[1] Some medications may cause discoloration such as medications containing amiodarone or silver. Furthermore, mongolian spots, large birthmarks, and the consumption of food products with blue or purple dyes can also result in the bluish skin tissue discoloration and may be mistaken for cyanosis.[2][3] Appropriate physical examination and history taking is a crucial part to diagnose cyanosis. Management of cyanosis involves treating the main cause, as cyanosis isn’t a disease, it is a symptom.[1]
Cyanosis | |
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Cyanosis of the hand of a patient with low oxygen saturations | |
Specialty | Pulmonology, cardiology |
Types | Central, peripheral |
Cyanosis is further classified into central cyanosis and peripheral cyanosis.