Category: Health Services

The first thing that needs to be determined before prescribing oxygen therapy is the level of oxygen in the arterial blood. The best way (the one that’s been followed by millions of people today) is by checking the saturation levels with the help of the pulse oximeter. This does not require any blood sample! The normal levels of oxygen are 75 to 100mmHg of mercuric levels. Anything below 60mmHg requires supplemental oxygen.