Anurse is caring for a client receiving oxygen therapy. what is the expected reference range when obtaining oxygen saturation level? identify four (4) reasons the reference range may be lower.

The expected reference range when obtaining oxygen saturation level is 95%-100%.

The four reasons as to why the reference range may be lower is due to the following;

-          Pulmonary edema

-          Person with history of COPD

-          Asthma and Emphysema

-          Pneumonia

if you listed your answers right then i believe your answer is b.