add example. 1  en The Amur Leopard (from the name of the river flowing at the border between Russia and China, or Far Eastern leopard, Panthera pardus orientalis) is quite certainly the rarest and most endangered big cat in the world because of a wild population of only 30 to 35 individuals [ 1 ].
Rebreathing resulted in acidosis because the pH value began to dip below the normal range between 20 and 30 secods--as soon as it went below 7.35. Acidosis is the result of impaired respiration (hypoventilation)that leads to the accumulation of too much carbon dioxide in the blood.
During episodes of apnea though, where the body forcibly slows or shuts down breathing entirely in spurts, this can lead to dangerously high levels of carbon dioxide in the blood, and could lead to death in the most serious cases. Hypoventilation can be caused by numerous factors. These may be caused by natural obstructions in the airway, or resistances to sufficient airflow. These are commonly brought on by other medical conditions that result in lower airway obstruction, including emphysema, cystic fibrosis and bronchitis.