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. Low oxygen saturation is a sign that the lungs and heart are not working well.
Current as of: November 14, 2022
Anne C. Poinier MD - Internal Medicine & Adam Husney MD - Family Medicine & Mark A. Rasmus MD - Pulmonology, Critical Care Medicine, Sleep Medicine & Lesley Ryan MD - Family Medicine & Hasmeena Kathuria MD - Pulmonology, Critical Care Medicine, Sleep Medicine