Hypoxia

•It is a condition wherein there is not enough oxygen available to the blood and body tissues.
•Hypoxia can either be generalised, affecting the whole body, or local, affecting a region of the body.
•Normal arterial oxygen is approximately 75 to 100 millimetres of mercury (mm Hg) and normal pulse oximeter readings usually range from 95 to 100%.
•Values under 90% are considered low.
•When levels fall below 90%, patients could begin experiencing lethargy, confusion or mental disruptions because of insufficient quantities of oxygen reaching the brain.
•Levels below 80% can result in damage to vital organs.