Cyanosis – Definition, Causes and Symptoms

Definition of Cyanosis, Causes and Symptoms Cyanosis is a bluish coloration to the lips, nail beds, and skin that indicates inadequate oxygenation. Clinically, cyanosis exists when the oxygen saturation of arterial blood drops below 85 percent – may result from conditions that affect the ability of the lungs to oxygenate the blood, such as may occur with chronic obstructive pulmonary […]

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