Give a stream of consciousness and then the final answer. P CO -- Partial pressure of carbon dioxide at sea level (765 mmHg) in arterial blood is between 35 mmHg and 45 mmHg.

Answer this question: the partial pressure of carbon dioxide in arterial blood is approximately?
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This is the relevant information: P CO -- Partial pressure of carbon dioxide at sea level (765 mmHg) in arterial blood is between 35 mmHg and 45 mmHg.
So, the final answer is between 35 mmHg and 45 mmHg.
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