Blood oxygen levels (SpO2) indicate the oxygen levels present in the blood that flows through the body. You can interpret your blood oxygen level reading using the table below:
95% – 100%
|95% – 100%
||90% – 94%
Some people may have lower oxygen levels*
|Call a doctor
Need more oxygen
|Go to A&E immediately
Need oxygen urgently
: This means that your blood oxygen level is within a healthy range.
90% – 94%
: This means that your blood oxygen level is low. Supplemental oxygen may be needed. Consult a doctor.
: This means that your blood oxygen level is dangerously low. Emergency treatment is needed urgently. Go to an Accident & Emergency Department (A&E) immediately.
*Some people may have lower-than-normal readings, such as smokers or people with pre-existing lung or other medical conditions. Oximeter readings may also be inaccurate, due to reasons such as trembling or shaking hands or the use of nail varnish.
Now, we are distributing oximeters so we can regularly check our blood oxygen levels, and if they drop below normal, we can be alert to this change in our bodies and seek required medical attention.
If you have pre-existing conditions, you may wish to consult your doctor. Based on your health conditions, your doctor will advise you on how often your oxygen levels should be checked.
Blood oxygen level readings cannot and do not replace a COVID-19 test, and low blood oxygen levels may be caused by other underlying conditions or complications besides COVID-19.
Residents should follow up with their doctors if they have any specific questions or do not feel well.