How is oxygen-carrying capacity of the blood determined in methemoglobinemia?

Updated: Dec 09, 2018
  • Author: Mary Denshaw-Burke, MD, FACP; Chief Editor: Emmanuel C Besa, MD  more...
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Oxygen-carrying capacity of the blood may be determined with the help of the following:

  • Arterial blood gas (ABG) determination
  • Co-oximetry (if available)
  • Pulse oximetry (typically less accurate than co-oximetry in the setting of methemoglobinemia, with the exception of newer multiwavelength pulse oximeters)

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