hard · MCAT chem-phys
A patient with carbon monoxide (CO) poisoning is treated with 100% oxygen.
Why is this treatment effective based on chemical principles?
- Oxygen permanently denatures and breaks apart the carboxyhemoglobin complex
- Oxygen acts as a direct catalyst for oxidizing CO into CO_2 within the blood
- High oxygen concentration shifts the reversible equilibrium to displace CO from hemoglobin
- Oxygen raises the blood pH, and this reduced acidity lowers the binding affinity of CO
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