Oxygen saturation (medicine)
Oxygen Saturation (Medicine)
Oxygen saturation (pronounced: /ˈɒksɪdʒən sætʃəˈreɪʃən/) is a term used in medicine to refer to the extent to which hemoglobin in the blood is saturated with oxygen. It is usually expressed as a percentage, with normal levels typically between 95% and 100%.
Etymology
The term "oxygen saturation" is derived from the English words "oxygen" and "saturation". "Oxygen" (pronounced: /ˈɒksɪdʒən/) comes from the Greek words "oxys" meaning "sharp" and "genes" meaning "producer", referring to its role in producing acids. "Saturation" (pronounced: /sætʃəˈreɪʃən/) comes from the Latin word "saturare", meaning "to fill full".
Measurement
Oxygen saturation is typically measured using a device called a pulse oximeter. This non-invasive device uses light absorption through a patient's finger, earlobe, or toe to estimate the oxygen saturation level in the blood.
Related Terms
- Hypoxemia: A condition characterized by abnormally low levels of oxygen in the blood.
- Hyperoxia: A condition characterized by abnormally high levels of oxygen in the blood.
- Hypoxia: A condition in which there is a decrease in the oxygen supply to a tissue.
- Anoxia: A condition characterized by an absence of oxygen supply to an organ's tissues.
See Also
References
External links
- Medical encyclopedia article on Oxygen saturation (medicine)
- Wikipedia's article - Oxygen saturation (medicine)
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