Dissolved oxygen meters by entering feet above sea level or in some meters an internal barometer compensates for changes in pressure automatically provided that the barometer is properly calibrated.
Oxygen saturation at room temperature.
Normally dissolved oxygen from air in fresh water and sea water salt water at pressures ranging 1 4 bar abs are indicated in the diagrams and tables below.
In air with normal composition the oxygen partial pressure is 20 of the total pressure.
Oxygen saturation can miss a large a a gradient.
Oxygen saturation can be 100 when pao2 is 90 mmhg or 300 mmhg.
Dissolved oxygen values shown in the table represent saturation for the corresponding temperature.
This results in 20 oxygen dissolution from air compared to pure oxygen.
The normal oxygen saturation level is 97 100 oer 1.
Older adults typically have lower oxygen saturation levels than younger adults.
Normal arterial blood oxygen saturation levels in humans are 95 100 percent.
At a high fio2 of supplemental oxygen oxygen saturation cannot distinguish a pao2 above 90 mmhg.
If the level is below 90 percent it is considered low and called hypoxemia.
Oxygen saturation is the fraction of oxygen saturated hemoglobin relative to total hemoglobin unsaturated saturated in the blood the human body requires and regulates a very precise and specific balance of oxygen in the blood.
Normal pao2 on fio2 50 should be 250 mmhg linear relationship.
Normal pao2 on fio2 100 should be 500 mmhg.
Oxygen solubility in fresh and salt water chart pdf.