Alveolar to Arterial PO2 Difference and Exercise Quiz
9 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What happens to alveolar ventilation during incremental exercise?

  • It increases linearly with workload
  • It decreases as workload increases
  • It remains constant but increases the gradient at ~80% intensity of max to get oxygen into blood (correct)
  • It plateaus at ~50% O2 extraction from blood

    • What happens to oxygen levels in muscle during incremental exercise?

  • Oxygen levels peak at ~80% intensity of max
  • Oxygen levels decrease as workload increases
  • Oxygen levels increase linearly with workload
  • Oxygen levels plateau around ~50% O2 extraction from blood (correct)

    • What is the definition of Exercise-induced arterial hypoxemia (EIAH)?

  • Condition when O2 carried in arterial blood is severely reduced (by 10 mm Hg PaO2 or 4% SaO2) (correct)
  • Condition when O2 carried in venous blood is severely reduced (by 10 mm Hg PvO2 or 4% SvO2)
  • Condition when O2 carried in arterial blood is mildly reduced (by 5 mm Hg PaO2 or 2% SaO2)
  • Condition when O2 carried in venous blood is mildly reduced (by 5 mm Hg PvO2 or 2% SvO2)

    • What happens to venous blood saturation as workload increases during incremental exercise?

    <p>It decreases as workload increases and plateaus around ~80%</p> Signup and view all the answers

    What happens to arterial CO2 levels at higher intensity exercise?

    <p>Arterial CO2 levels drop off</p> Signup and view all the answers

    What is the atmospheric pressure at sea level in mm Hg?

    <p>760 mm Hg</p> Signup and view all the answers

    What is the oxygen content in the room at sea level in mm Hg?

    <p>150 mm Hg</p> Signup and view all the answers

    What happens to mean capillary and Mb(myoglobular) O2 levels at maximal exercise compared to rest?

    <p>They are higher than at rest</p> Signup and view all the answers

    Why does oxygen not go to 0 during its travel from atmosphere to mitochondria?

    <p>Because of mixed venous blood</p> Signup and view all the answers

    More Like This

    Ventilatory response to exercise
    33 questions

    Ventilatory response to exercise

    EvocativeSense avatar
    EvocativeSense
    Teste Fisiologia Respiração 2
    14 questions

    Teste Fisiologia Respiração 2

    MomentousPeninsula2385 avatar
    MomentousPeninsula2385
    Exercise Physiology: Ventilation Values
    8 questions

    Exercise Physiology: Ventilation Values

    AchievableRelativity avatar
    AchievableRelativity
    Physiology of Exercise and Respiratory Function
    35 questions

    Physiology of Exercise and Respiratory Function

    SolidAntigorite6439 avatar
    SolidAntigorite6439
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser