MICROANATOMY

Detailed explanation-1: -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.

Detailed explanation-2: -Causes of Cyanosis Central cyanosis occurs because blood changes color based on the presence (or absence) of oxygen. Red blood is oxygen rich, but blood with decreased oxygen turns blue or purple.

Detailed explanation-3: -Cyanosis that occurs due to a congential or birth defect of the heart usually begins at birth or within the first few years of life. In heart failure, lung embolism, pneumonia or acute severe attack of asthma, the cyanosis may have a sudden or abrupt onset as the patient “begins to turn blue” due to lack of oxygen.

Detailed explanation-4: -Cyanosis is a bluish color in the skin, lips, and nail beds caused by a shortage of oxygen in the blood. Cyanosis occurs because blood with low levels of oxygen turns blue or purple. This low-oxygen blood causes a blue-purple tint to the skin.