When we first meet Dory, she's just swimming around minding her own business when suddenly she bumps into Marlin and instantly offers to help him hunt down his son.
Chronic obstructive pulmonary disease (COPD) is a leading cause of death and disability internationally. Alveolar hypoxia and consequent hypoxemia increase in prevalence as disease severity increases.
1 Ischemic hypoxia (orstagnant hypoxia) â Reduced brain oxygen is caused by inadequate blood flow to the brain. 2  Stroke, shock, cardiac arrest and heart attack may cause stagnant hypoxia. 3  Ischemic hypoxia can also be created by pressure on the brain.