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Explain hypoxia vs hypoxemia?

3 doctors weighed in
Dr. Stephen Siegel
Internal Medicine - Pulmonology
2 doctors agree

In brief: Tissues vs. blood

Hypoxia is low oxygen in the tissues.
Hypoxemia is low oxygen in the arterial blood. Hypoxemia caused by low oxygen in air (such as high altitude), low ventilation (slow breathing oversedation), lung disease or blood clots in lung. Low oxygen in arterial blood leads to low oxygen in tissues but hypoxia can also be due to anemia (less oxygen carrying capacity by blood), carbon monoxide poisoning.

In brief: Tissues vs. blood

Hypoxia is low oxygen in the tissues.
Hypoxemia is low oxygen in the arterial blood. Hypoxemia caused by low oxygen in air (such as high altitude), low ventilation (slow breathing oversedation), lung disease or blood clots in lung. Low oxygen in arterial blood leads to low oxygen in tissues but hypoxia can also be due to anemia (less oxygen carrying capacity by blood), carbon monoxide poisoning.
Dr. Stephen Siegel
Dr. Stephen Siegel
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