Hypoxia is a general term to describe lack of oxygen in the blood.
etiology for this situation might be damage in any one of the pathways that related to oxygen exchange. Including lung diseases-- red blood cell diseases or outer environment with lack of O2 .
the result is hyperventilation to compensate and then danger of metabolic alkaloids .
Hypoxia is actually a deficiency in the amount of oxygen reaching body tissue. HypoxEMia is a lack of oxygen in the blood.