PATHOLOGY

Detailed explanation-1: -Blood that has lost its oxygen is dark bluish-red. 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: -Peripheral cyanosis is when the hands, fingertips, or feet turn blue because they are not getting enough oxygen-rich blood. Possible causes include Raynaud’s disease, cardiovascular problems and hypothermia. All organs and tissues need oxygen to function. A person’s body absorbs oxygen from the air that they breathe.

Detailed explanation-3: -Blue or grey skin or lips (cyanosis) happens when there’s not enough oxygen in your blood, or you have poor blood circulation. It can be caused by a serious problem with the: lungs, like asthma or pneumonia. airways like choking or croup. heart, like heart failure or congenital heart disease.