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Your O2 saturation is within the normal range, indicating your blood is well-oxygenated and your lungs are efficiently transferring oxygen.
An O2 saturation below 85% is a medical emergency. Your blood is very deoxygenated, and your organs are at risk of hypoxic damage. Immediate high-flow oxygen therapy is needed.
This is a medical emergency. Call emergency services, administer 100% oxygen, and treat the underlying cause.
O2 saturation: {{value}}% — critically low (ref: {{low}}%–{{high}}%)Low O2 saturation means your blood is carrying less oxygen than it should. This is seen in lung diseases (COPD, pneumonia, asthma, COVID-19), heart disease with shunting, and at high altitude.
See your doctor. Oxygen supplementation and treatment of the underlying lung or heart condition are needed.
O2 saturation: {{value}}% — below reference range (ref: {{low}}%–{{high}}%)A borderline low O2 saturation (91–94%) may be seen in mild lung disease, during sleep (especially in sleep apnea), or in people with chronic lung conditions.
Discuss with your doctor if you have lung disease symptoms or risk factors for sleep apnea.
O2 saturation: {{value}}% — borderline lowYour O2 saturation is within the normal range, indicating your blood is well-oxygenated and your lungs are efficiently transferring oxygen.
No action needed.
O2 saturation: {{value}}% — within reference rangeYour O2 saturation is 96% or higher, which is excellent. Your blood is well-saturated with oxygen.
No action needed.
O2 saturation: {{value}}% — optimalAn O2 saturation of 100% is typically seen only with supplemental oxygen. In room air, 100% saturation can occur but is generally not harmful.
If on supplemental oxygen, the flow rate may be reduced. No concern otherwise.
O2 saturation: {{value}}% — above reference rangeO2 saturation of 100% is above the normal range for room air and is typically due to supplemental oxygen therapy.
If on oxygen, discuss with your doctor whether the flow rate can be reduced.
O2 saturation: {{value}}% — above typical range100% O2 saturation with high pO2 indicates supplemental oxygen is being administered at a level exceeding physiological need.
If on oxygen therapy, adjust flow rate to target normal saturation (94–98%) to avoid oxygen toxicity.
O2 saturation: {{value}}% — supraphysiologicalUpload your lab report and get your actual values interpreted in plain English — instantly, with no medical training required.