Alternate Names : Oxygen Saturation, O2 Saturation
What do the test results mean?
A reading lower than 90% may be due to any factor which affects blood, hemoglobin, and oxygen circulation in the body. These may include:
lung problems, such as pneumonia
blood vessel problems
long-standing respiratory disease, or chronic obstructive pulmonary disease. Below normal SaO2 readings may be the norm for individuals with this condition.
If any of these complications are present, the healthcare provider may order additional tests to better assess oxygen saturation.