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What is a discoloration of the skin and mucous membranes?

What is a discoloration of the skin and mucous membranes?

Cyanosis is an abnormal bluish discoloration of the skin and mucous membranes, caused by blue-colored blood circulating in the superficial capillaries and venules.

What is the medical term for bluish tinge to the skin and mucous membranes due to below normal oxygen levels?

Cyanosis is a bluish or purplish tinge to the skin due to very low oxygen saturation (SaO2) and thus excess reduced (deoxygenated) haemoglobin. Approximately 5 g/dL of reduced haemoglobin has to be present in the capillaries to generate the dark blue colour of cyanosis.

Which is a condition in which the skin and mucous membranes turn blue?

Cyanosis refers to a bluish cast to the skin and mucous membranes. Peripheral cyanosis is when there is a bluish discoloration to your hands or feet. It’s usually caused by low oxygen levels in the red blood cells or problems getting oxygenated blood to your body.

What is Cyanose?

Cyanosis is a pathologic condition that is characterized by a bluish discoloration of the skin or mucous membrane1 [1]. The word cyanosis is a derivative of the word cyan, a blue-green color. The presence of cyanosis can pose a serious diagnostic challenge.

How do you know if you have cyanosis in dark skin?

In light-skinned patients, cyanosis presents as a dark bluish tint to the skin and mucous membranes (which reflects the bluish tint of unoxygenated hemoglobin). But in dark-skinned patients, cyanosis may present as gray or whitish (not bluish) skin around the mouth, and the conjunctivae may appear gray or bluish.

What is a bluish discoloration of the skin?

People whose blood is low in oxygen tend to have a bluish color to their skin. This condition is called cyanosis. Depending on the cause, cyanosis may develop suddenly, along with shortness of breath and other symptoms. Cyanosis that is caused by long-term heart or lung problems may develop slowly.

What is the difference between hypoxia and cyanosis?

Cyanosis is the bluish discoloration of the tissues that results from increased concentration of reduced hemoglobin. Hypoxia is defined as insufficient levels of oxygen in tissues to maintain cell function. These findings could indicate a serious underlying condition, and may require urgent management.

Can low iron cause cyanosis?

In fact patients who have anemia do not develop cyanosis until the oxygen saturation (also called SaO2) falls below normal haemoglobin levels.

What does cyanosis look like?

Cyanosis is characterized by bluish discoloration of skin and mucous membranes. Cyanosis is usually a sign of an underlying condition rather than being a disease in itself. The most common symptoms of the condition are bluish discoloration of the lips, fingers, and toes.

What are the symptoms of lack of oxygen in the body?

Symptoms of low blood oxygen levels

  • shortness of breath.
  • headache.
  • restlessness.
  • dizziness.
  • rapid breathing.
  • chest pain.
  • confusion.
  • high blood pressure.

What bluish discoloration of the skin is associated with heart lung and circulatory diseases?

What is cyanosis a symptom of? Cyanosis occurs when oxygen-depleted (deoxygenated) blood, which is bluish rather than red, circulates through the skin. Cyanosis can be caused by many types of severe lung or heart disease that cause levels of oxygen in the blood to be low.

What causes bluish discoloration of skin and mucous membranes?

Cyanosis is a physical sign causing bluish discoloration of the skin and mucous membranes. Cyanosis is caused by a lack of oxygen in the blood. Cyanosis is associated with cold temperatures, heart failure, lung diseases, and smothering.

What does it mean when your skin turns blue?

Medically Reviewed on 3/29/2017. Cyanosis is the medical term for a bluish color of the skin and the mucous membranes due to an insufficient level of oxygen in the blood.

Why does my skin turn bluish with cyanosis?

Cyanosis. Since, however, the presence of cyanosis is dependent upon there being an absolute quantity of deoxyhemoglobin, the bluish color is more readily apparent in those with high hemoglobin counts than it is with those with anemia. Also, the bluer the color, the more difficult it is to detect on deeply pigmented skin.

What causes bluish discoloration on the right leg?

Acute arterial thrombosis of the right leg. Cyanosis is defined as a bluish discoloration, especially of the skin and mucous membranes, due to excessive concentration of deoxyhemoglobin in the blood caused by deoxygenation.