SpO2 is an abbreviation for Saturation of Peripheral Oxygen. What is The Normal SpO2 level? What Level of SpO2 is Dangerous? Healthy adults typically have oxygen saturation levels between 95% and 99%, and any pulse oximeter readings below 89% would usually be a cause for concern. ...
However, deviations may occur if certain cardiac activities do not manifest themselves as a pulse wave in the vessels. This is the case, for example, with certain forms of arrhythmia.4 The difference between the heart rate and the peripherally measurable pulse rate is called a pulse deficit. ...