At What Exercise Level Would the Alveolar-Arterial PO₂ Difference Be

question 34

Multiple Choice

At what exercise level would the alveolar-arterial PO₂ difference be expected to change?

• A) It will increase when 40% or more of maximum oxygen consumption is reached
• B) It will increase when 60% or more of maximum oxygen consumption is reached
• C) It will start to decrease when 40% or more of maximum oxygen consumption is reached
• D) It will start to decrease when 60% or more of maximum oxygen consumption is reached

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