Stephen J. Schueler, M.D.

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Carbon Monoxide Poisoning Evaluation

The evaluation of carbon monoxide poisoning begins with a history and physical examination.

Physical findings in those with carbon monoxide poisoning may include:

The diagnosis of carbon monoxide poisoning must be confirmed through testing.

Tests that may be used to evaluate carbon monoxide poisoning include:

CO LevelSymptoms
Under 10 percentno symptoms
20 percentheadache, nausea, vomiting
30 percentconfusion, lethargy, EKG changes
40 to 60 percentcoma
Over 60 percentcardiac arrest

Continue to Carbon Monoxide Poisoning Treatment

Last Updated: Dec 7, 2010 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Carbon Monoxide Poisoning References
  1. Annane D, Chevret S, Jars-Guincestre C, Chillet P, Elkharrat D, Gajdos P, Raphael C. Prognostic factors in unintentional mild carbon monoxide poisoning. Intensive Care Med. 2001 Nov;27(11):1776-81. [11810122]
  2. Centers for Disease Control and Prevention (CDC). Carbon monoxide poisoning after hurricane Katrina--Alabama, Louisiana, and Mississippi, August-September 2005. MMWR Morb Mortal Wkly Rep. 2005 Oct 7;54(39):996-8. [16208314]
  3. Domachevsky L, Adir Y, Grupper M, Keynan Y, Bentur Y. Hyperbaric oxygen in the treatment of carbon monoxide poisoning. Clin Toxicol (Phila). 2005;43(3):181-8. [15902792]
  4. Juurlink DN, Buckley NA, Stanbrook MB, Isbister GK, Bennett M, McGuigan MA. Hyperbaric oxygen for carbon monoxide poisoning. Cochrane Database Syst Rev. 2005 Jan 25;(1):CD002041. [15674890]
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