In order for our bodies to function efficiently—to maintain aerobic metabolism—it is important that oxygen is constantly and reliably delivered to peripheral tissues. The amount of oxygen necessary varies from organ system to organ system and is dependent on whether the subject is at rest or is exercising, or whether hypercatabolic states, like infection, are present.
Calculating oxygen delivery
Oxygen delivery (DO2) is the amount of oxygen transported per unit time and is dependent on the oxygen content of the blood and the flow of the blood.
So, oxygen delivery is calculated as follows.
Under normal resting conditions, an adult of average size consumes about 250 mL of oxygen per minute (VO2).
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