A 67-year-old female complains of nausea, vomiting, and abdominal pain that woke her from her sleep. As you and your partner enter her residence, you immediately note the smell of natural gas. Suspecting carbon monoxide toxicity, you quickly remove the patient from her home and place her in the ambulance. When assessing her, it is important to remember that:
A. a pulse oximetry reading that is high does not rule out significant hypoxemia.
B. hyperbaric oxygen must be given within 20 minutes in order to prevent death.
C. definitive airway management is the most effective treatment for her condition.
D. breathing room air will not eliminate any carbon monoxide from the bloodstream.
Answer: A. a pulse oximetry reading that is high does not rule out significant hypoxemia.
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