Oxygen saturation refers to the amount of oxygen being carried in
the red blood cells, which load up with oxygen in the lungs and then transport
it to the rest of the body. People who have medical conditions, such as lung
disease, may not have enough oxygen in their red blood cells.
Oxygen saturation can be measured by a device called an oximeter.
Oxygen saturation of less than 90% is a sign that the lungs and heart are not
June 17, 2011
Anne C. Poinier, MD - Internal Medicine & Mark A. Rasmus, MD - Pulmonology, Critical Care Medicine, Sleep Medicine
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