ACEP ID:

Carbon Monoxide Poisoning

Critical Issues in the Evaluation and Management of Adult Patients Presenting to the Emergency Department With Acute Carbon Monoxide Poisoning

Clinical Policy: Critical Issues in the Evaluation and Management of Adult Patients Presenting to the Emergency Department With Acute Carbon Monoxide Poisoning (2016)

Scope of Application

This guideline is intended for physicians working in emergency departments.

Inclusion Criteria

This guideline is intended for adult patients presenting to the emergency department with suspected or diagnosed acute carbon monoxide poisoning.

Exclusion Criteria

This guideline is not intended to be used for out-of-hospital emergency care patients, pediatric populations, pregnant patients and fetal exposures, those with chronic carbon monoxide poisoning, or patients with delayed presentations (more than 24 hours after cessation of exposure) of carbon monoxide poisoning.


Recommendations offered in this policy are not intended to represent the only diagnostic and management options that the emergency physician should consider. ACEP recognizes the importance of the individual physician’s judgment and patient preferences.

Critical Questions

  • In emergency department patients diagnosed with acute carbon monoxide (CO) poisoning, does hyperbaric oxygen (HBO2) therapy, compared with normobaric oxygen therapy, improve long-term neurocognitive outcomes?

    Recommendations
    Level A Recommendations
    None specified.
    Level B Recommendations

    None specified.

    Level C Recommendations

    In symptomatic CO poisoning, selected patients may benefit from HBO2 treatment based on severity of symptoms and availability (distance and time).

    Level A Recommendations
    None specified.
    Level B Recommendations

    None specified.

    Level C Recommendations

    In symptomatic CO poisoning, selected patients may benefit from HBO2 treatment based on severity of symptoms and availability (distance and time).

Download the Policy

PDF Icon CarbonMonoxide-cp.pdf December 2024

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