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Hypoxia - Definition


Hypoxia means a decrease in the amount of oxygen supplied to the organs via the blood. It is a consequence of hypoxemia, which is the decreased amount of oxygen carried by the red blood cells. The oxygenation of organs and tissues is then insufficient, and it can result in damage to the cells constituting the affected organs. It may be due to the altitude, anemia, a disease of hemoglobin, carbon monoxide poisoning, chronic lung disease, heart disease, heart failure ... Certain cells of the body are more sensitive to hypoxia, especially the brain, which can cause irreversible damage. The oxygen must be quickly restored. In cases of significant hypoxia, it is called anoxia, just like anoxemia which is severe hypoxemia.