(hī″pĕr-ŏk-sē′mē-ă) [″ + oxys, sharp, + haima, blood] Increased oxygen content of the blood.

What happens Hyperoxemia?

Hypoxemia occurs when levels of oxygen in the blood are lower than normal. If blood oxygen levels are too low, your body may not work properly. Blood carries oxygen to the cells throughout your body to keep them healthy. Hypoxemia can cause mild problems such as headaches and shortness of breath.

What happens if your oxygen level is too high?

Oxygen toxicity is lung damage that happens from breathing in too much extra (supplemental) oxygen. It’s also called oxygen poisoning. It can cause coughing and trouble breathing. In severe cases it can even cause death.