3 doctors weighed in:

How long do the symptoms of carbon monoxide poisoning take to go away?

3 doctors weighed in
Dr. Robert Kwok
Pediatrics
1 doctor agrees

In brief: Depends on severity

Mild or moderate symptoms can last from less than an hour to many hours, depending on the severity of the carbon monoxide (co) poisoning, the type of treatment, the victim's other health issues, etc.
.. Studies show the half-life of carboxyhemoglobin (co bound to hemoglobin) to be about 4 hours (3-5 hr) when breathing regular air, and about 1 hour (30-90 minutes) when breathing 100% oxygen.

In brief: Depends on severity

Mild or moderate symptoms can last from less than an hour to many hours, depending on the severity of the carbon monoxide (co) poisoning, the type of treatment, the victim's other health issues, etc.
.. Studies show the half-life of carboxyhemoglobin (co bound to hemoglobin) to be about 4 hours (3-5 hr) when breathing regular air, and about 1 hour (30-90 minutes) when breathing 100% oxygen.
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Dr. Eugene Saltzberg
Emergency Medicine

In brief: It depends

It depends on the co level in the blood, and type of treatment available.

In brief: It depends

It depends on the co level in the blood, and type of treatment available.
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