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Carbon dioxide poisoning.

Nigel J Langford1

  • 1West Midlands Poisons Unit, City Hospital, Birmingham, UK.

Toxicological Reviews
|February 28, 2006
PubMed
Summary
This summary is machine-generated.

Carbon dioxide (CO2) is a vital gas with industrial uses but can be toxic. High concentrations cause asphyxiation and cellular damage, while solid CO2 causes cryogenic burns. Prompt removal from exposure, oxygen, and supportive care are key treatments.

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Area of Science:

  • Physiology
  • Toxicology
  • Industrial Chemistry

Background:

  • Carbon dioxide (CO2) is a natural metabolic byproduct essential for physiological processes.
  • CO2 has widespread industrial applications, including beverage carbonation, fire suppression, and chemical manufacturing.
  • Understanding CO2's dual role as a physiological gas and industrial agent is crucial for safety.

Purpose of the Study:

  • To outline the physiological effects and toxicological hazards of carbon dioxide exposure.
  • To detail the risks associated with both gaseous and solid forms of carbon dioxide.
  • To describe the appropriate management strategies for carbon dioxide poisoning and related injuries.

Main Methods:

  • Review of existing toxicological data and physiological studies on carbon dioxide.

Related Experiment Videos

  • Analysis of industrial applications and associated exposure risks.
  • Compilation of clinical management guidelines for carbon dioxide toxicity.

    • Main Results:

    • Gaseous CO2 acts primarily as an asphyxiant, with toxicity increasing at concentrations above 10%, leading to symptoms like tachycardia, arrhythmias, and impaired consciousness, potentially causing convulsions, coma, and death.
    • Solid CO2 (dry ice) poses a risk of cryogenic burns upon direct contact.
    • Rapid warming of solid CO2 can generate dangerous levels of gas, especially in confined spaces.

    Conclusions:

    • Immediate removal from the toxic environment, oxygen administration, and supportive care are critical for managing CO2 poisoning.
    • Severe cases may necessitate assisted ventilation.
    • Dry ice burns require thawing and analgesia, with potential need for surgical intervention in severe instances.