Programs that offer tests which measure the amount of oxygen that is being carried by red blood cells. One method uses a sensor that shines light through a finger, ear lobe or toe. The device measures the amount of oxygen in the blood based on the way red blood cells carrying oxygen absorb and reflect light. Blood may also be taken from an artery and the amount of oxygen measured directly. An oxygen level that is lower than normal may be a sign of lung disease or other medical conditions.
No programs.