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suffocation
Lack of oxygen causes blood cells to appear blue. Remember that all veins except the pulmonary vein carry 'oxygen depleted blood' or deoxygenated blood. Dont worry that your veins appear blue though! Its fine.
A blackout or, if a severe lack of oxygen, death.
The brain needs oxygen in order to function. A lack of oxygen to the brain can cause brain damage. Brain damage can result in seizures.
The red blood cells themselves do not take any action to get more oxygen, but the kidneys sense a lack of oxygen and produce more erythropoietin (hormone responsible for producing red blood cells) and this in turn increases oxygen levels
clubbing
tet is short for tetrology of Fallot, a heart condition, and cyanotic means they turned blue, usually from lack of oxygen.
Clubbing is the medical term for the changes in fingernails or toenails associated with chronic lack of oxygen.
Lack of heamoglobin, lack of iron etc
Dark nails indicate a B12 deficiency, white nails can indicate anemia, red nails are due to heart disease, blue nail beds are a sign of a lack of oxygen in the blood, and yellow nail beds are a symptom of liver disorders. There are also other things your nails can indicate by the ridge type, the shape of the nail, and the quality of nail (brittle or fraying for example) as well.
It would depend on the cause of the paleness. Cyanosis is a blue tint to the skin which happens as a result of a lack of oxygen. So, unless the pallor is caused by a condition with decreased oxygen levels, it will not progress to cyanosis.
Cyanosis, which is from a lack of oxygen in the blood.
CYANOSIS Is a bluish discoloration of the skin and mucous membranes caused by a lack of adequate oxygen in the blood.
suffocation
Yes, you can. It normally happens when the airways in your lungs close up or get filled with mucus you can see when someone is suffering from lack of oxygen when their lips go blue or their breathing is very noisy wheezy.
Medically, lack of oxygen is referred to as, "Hypoxia."
Mammals have blue blood (lack of oxygen), but when exposed to oxygen, it turns red Hope this helped! :)