Final answer:
Administering 100 percent oxygen can save a patient from carbon monoxide poisoning by replacing carbon monoxide with oxygen in their bloodstream. Giving carbon dioxide wouldn't work because it is a waste product and wouldn't address the oxygen deficiency.
Step-by-step explanation:
When a patient is experiencing carbon monoxide poisoning, administering 100 percent oxygen can save the patient by replacing the carbon monoxide in their bloodstream with oxygen. Carbon monoxide has a higher affinity for binding to hemoglobin in the blood compared to oxygen, so it displaces oxygen and prevents it from reaching the body's tissues. By providing 100 percent oxygen, it helps to increase the concentration of oxygen in the patient's blood, allowing more oxygen to bind to hemoglobin and be delivered to the tissues.
On the other hand, giving carbon dioxide wouldn't work because carbon dioxide is a waste product that is produced by the body during cellular respiration. It is normally eliminated from the body through exhalation. Introducing carbon dioxide into the body would not address the oxygen deficiency caused by carbon monoxide poisoning and could potentially worsen the condition.