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Why does carbon monoxide poisoning produce rosy cheeks?
1 doctor weighed in

Dr. Julian Bragg
Neurology
In brief: "Fake" oygen
Hemoglobin, the oxygen-carrying molecule in red blood cells, turns bright red when it is attached to oxygen molecules.
Carbon monoxide causes its toxic affects by binding to hemoglobin at the same sites and not letting go, preventing oxygen transport. While bound, carbon monoxide also causes the same color change, causing a characteristic "cherry red" appearance despite oxygen starvation.

In brief: "Fake" oygen
Hemoglobin, the oxygen-carrying molecule in red blood cells, turns bright red when it is attached to oxygen molecules.
Carbon monoxide causes its toxic affects by binding to hemoglobin at the same sites and not letting go, preventing oxygen transport. While bound, carbon monoxide also causes the same color change, causing a characteristic "cherry red" appearance despite oxygen starvation.
Dr. Julian Bragg
Dr. Julian Bragg
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