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.
The pulse oximetry normal values are dependent on the patient`s health condition, respiratory rate, percentage of oxygen in the air, activities of the patients and other factors. Handheld Pulse Oximeter UT100. For a regular healthy human body, the normal blood oxygen saturation level (SpO2) should be around 94% to 99%.Patients who have mild respiratory diseases, the SpO2 should be 90% or above.or a regular healthy human body, the normal blood oxygen saturation level (SpO2) should be around 94% to 99%. Patients who have mild respiratory diseases, the SpO2 should be 90% or above.