Which of the Following Values Corresponds Most Closely to the Normal

question 26

Multiple Choice

Which of the following values corresponds most closely to the normal PO₂ and PCO₂ in the mixed venous blood returning to the lungs from the right side of the heart?

• A) PO₂ = 40 mm Hg; PCO₂ = 46 mm Hg
• B) PO₂ = 40 mm Hg; PCO₂ = 100 mm Hg
• C) PO₂ = 100 mm Hg; PCO₂ = 40 mm Hg
• D) PO₂ = 100 mm Hg; PCO₂ = 46 mm Hg

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