What is the role of chest radiograph in the evaluation of carbon monoxide (CO) toxicity?

Updated: Sep 18, 2018
  • Author: Guy N Shochat, MD; Chief Editor: Gil Z Shlamovitz, MD, FACEP  more...
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Answer

Obtain a chest radiograph in patients with significant intoxications, pulmonary symptoms, evidence of hypoxia, or if hyperbaric oxygen is to be used. Findings usually are normal. Changes such as the following imply a worse prognosis than normal findings:

  • Ground-glass appearance
  • Perihilar haze
  • Peribronchial cuffing
  • Intra-alveolar edema

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