oxygen delivery
Consider how is it possible to be hypoxic without being hypoxemic? How is it possible to be hypoxemic without being hypoxic

Hypoxic without hypoxemic Therefore ways you can be hypoxic: Hypoxemia, low cardiac output, anemia, or cytopathy (Something interfering with the ability of the cells to undergo oxidative phosphorylation, examples being cyanide poisoning, salicylates, septic shock)
Hypoxemic without hypoxia Increasing cardiac output