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Questions and Answers
What happens to alveolar ventilation during incremental exercise?
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?
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)?
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?
What happens to venous blood saturation as workload increases during incremental exercise?
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What happens to arterial CO2 levels at higher intensity exercise?
What happens to arterial CO2 levels at higher intensity exercise?
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What is the atmospheric pressure at sea level in mm Hg?
What is the atmospheric pressure at sea level in mm Hg?
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What is the oxygen content in the room at sea level in mm Hg?
What is the oxygen content in the room at sea level in mm Hg?
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What happens to mean capillary and Mb(myoglobular) O2 levels at maximal exercise compared to rest?
What happens to mean capillary and Mb(myoglobular) O2 levels at maximal exercise compared to rest?
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Why does oxygen not go to 0 during its travel from atmosphere to mitochondria?
Why does oxygen not go to 0 during its travel from atmosphere to mitochondria?
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