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(B) Carboxyhaemoglobin is formed when haemoglobin binds with carbon monoxide $(CO)$.Carbon monoxide has an affinity for haemoglobin that is approximat

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Carbon monoxide

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(B) Carboxyhaemoglobin is formed when haemoglobin binds with carbon monoxide $(CO)$.Carbon monoxide has an affinity for haemoglobin that is approximately $200$ to $250$ times higher than that of oxygen.When $CO$ binds to haemoglobin,it forms a stable compound called carboxyhaemoglobin,which prevents oxygen from binding to the haemoglobin,leading to hypoxia and potentially fatal conditions.Therefore,the presence of high levels of carboxyhaemoglobin indicates carbon monoxide poisoning.

Blood analysis of a patient reveals an unusually high quantity of carboxyhaemoglobin content. Which of the following conclusions is most likely to be correct?

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