Arrange the Following in Order from Highest to Lowest PO₂

question 150

Multiple Choice

Arrange the following in order from highest to lowest PO₂.
(1) PO₂ of pulmonary veins
(2) PO₂ of pulmonary artery
(3) PO₂ of alveolar air

• A) 1, 2, 3
• B) 2, 1, 3
• C) 2, 3, 1
• D) 3, 1, 2
• E) 3, 2, 1

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