Hyperbaric oxygen therapy in carbon monoxide poisoning is indicated in which scenario?

Hyperbaric oxygen therapy in carbon monoxide poisoning is indicated in which scenario?

• A. Mild symptoms
• B. Hyperbaric oxygen for all exposures
• C. Severe acidosis or severe neurological symptoms
• D. Oxygen alone

Answer: (C)

Hyperbaric oxygen therapy is used when carbon monoxide poisoning has caused significant tissue hypoxia, shown by severe acidosis or significant neurologic symptoms. At high pressures, 100% oxygen not only speeds CO dissociation from hemoglobin much more quickly than room air oxygen but also dramatically increases dissolved oxygen in plasma, delivering oxygen directly to tissues. This can reduce the risk of ongoing brain injury and other end-organ damage. In contrast, mild symptoms without neurologic impairment are typically managed with high-flow 100% oxygen at normal atmospheric pressure. So the scenario that calls for hyperbaric therapy is severe acidosis or severe neurological symptoms.

Hyperbaric oxygen therapy is used when carbon monoxide poisoning has caused significant tissue hypoxia, shown by severe acidosis or significant neurologic symptoms. At high pressures, 100% oxygen not only speeds CO dissociation from hemoglobin much more quickly than room air oxygen but also dramatically increases dissolved oxygen in plasma, delivering oxygen directly to tissues. This can reduce the risk of ongoing brain injury and other end-organ damage. In contrast, mild symptoms without neurologic impairment are typically managed with high-flow 100% oxygen at normal atmospheric pressure. So the scenario that calls for hyperbaric therapy is severe acidosis or severe neurological symptoms.