What Primary Factor Is Responsible for the Normal Change in Oxygen

question 6

Multiple Choice

What primary factor is responsible for the normal change in oxygen diffusion capacity during maximum exercise?

• A) Hyperventilation results in increased PaO₂s
• B) The increased cardiac output results in increased ventilation/perfusion mismatch
• C) Hyperventilation results in lowered H+ levels which shifts the oxygen dissociation curve
• D) The increased cardiac output results in recruitment of pulmonary capillaries

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