Adenosine triphosphate (ATP) is the biochemical way to store and use energy. F or your muscles -- in fact, for every cell in your body -- the source of energy that keeps everything going is called ATP.
An approximate blood oxygen level can also be estimated using a pulse oximeter â a small device that clips on your finger. Though the pulse oximeter actually measures the saturation of oxygen in your blood, the results are often used as an estimate of blood oxygen levels.Normal pulse oximeter readings range from 95 to 100 percent, under most circumstances. Values under 90 percent are considered low.1  Causes.n approximate blood oxygen level can also be estimated using a pulse oximeter â a small device that clips on your finger. Though the pulse oximeter actually measures the saturation of oxygen in your blood, the results are often used as an estimate of blood oxygen levels.
SpO2 normal values. The best place to get the answer to this question is in your doctor's office. Your pulse oximetry normal values are dependent on your health condition, respiratory rate, percentage of oxygen in the air, activities you are performing, and other factors.Here are some general guidelines to understand oximeter readings.ow or high pulse rate can indicate heart problems. According to Dr. Fred Furgang in his article Hypoxia, Oxygen, and Pulse Oximetry, a pilot should use supplemental oxygen if the oximeter reading is below 90%, maintain at 91-92% level when doing remedial tasks and above 93% with increased workload.