Carbon monoxide (CO) causes severe tissue hypoxia because it:
A. obstructs the pulmonary capillary bed and prevents gas exchange.
B. causes anemia by destroying the body's circulating red blood cells.
C. binds to the hemoglobin molecule and inhibits cellular oxygenation.
D. produces excess carbon dioxide when it binds to the red blood cells.
Answer: C. binds to the hemoglobin molecule and inhibits cellular oxygenation.
Health Professions
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