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.
Etymology: L, pulsare + reri, to calculate. the number of pulse beats per minute, normally the same as the heart rate. The normal pulse rate in an average adult varies from 60 to 80 beats/min, with fluctuations occurring with exercise, injury, illness, and emotional reactions.The average pulse rate for a newborn is 120 beats/min, which slows throughout childhood and adolescence.tymology: L, pulsare + reri, to calculate. the number of pulse beats per minute, normally the same as the heart rate. The normal pulse rate in an average adult varies from 60 to 80 beats/min, with fluctuations occurring with exercise, injury, illness, and emotional reactions.