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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 ]
Pallor is a pale color of the skin that can be caused by illness, emotional shock or stress, stimulant use, or anemia, and is the result of a reduced amount of oxyhaemoglobin and may also be visible as pallor of the conjunctivae of the eyes on physical examination. Pallor is more evident on the face and palms. It can develop suddenly or ...
Cyanosis of the hand in an elderly ... papilloedema, breathlessness, [17] pallor, [20 ... or A–a gradient), is the difference between the alveolar (A ...
Stress and cold temperature induce an exaggerated vasoconstriction of the small arteries, arterioles, and thermoregulatory vessels of the skin of the digits. Clinically this manifests as a white-blue-red transition in skin color. Underlying this transition is pallor and cyanosis of the digits, followed by a reactive hyperemia as they rewarm. [3]
Pallor: Pallor describes the loss of color to the affected limb. [8] Other skin changes can include swelling, stiffness, or cold temperature. [9] Pulselessness: A lack of pulse rarely occurs in patients, as pressures that cause compartment syndrome are often lower than arterial pressures. [5]
The caregiver may report observation of bluish skin discoloration, called cyanosis. Breathing abnormalities, such as lack of breathing, slow breathing, or irregular breathing may be noted. Differences in muscle tone, such as transient floppiness or rigidity can also be characterized as a BRUE.
Livedo reticularis is a common skin finding consisting of a mottled reticulated vascular pattern that appears as a lace-like purplish discoloration of the skin. [1] The discoloration is caused by reduction in blood flow through the arterioles that supply the cutaneous capillaries, resulting in deoxygenated blood showing as blue discoloration ().
There is no standard medical or surgical treatment for acrocyanosis, and treatment, other than reassurance and avoidance of cold, is usually unnecessary. The patient is reassured that no serious illness is present. A sympathectomy would alleviate the cyanosis by disrupting the fibers of the sympathetic nervous system to the area. [3]