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Questions and Answers
What is a main purpose of ventilation?
What is a main purpose of ventilation?
Which equation is used to measure physiologic dead space?
Which equation is used to measure physiologic dead space?
How does alveolar ventilation affect alveolar gas tensions?
How does alveolar ventilation affect alveolar gas tensions?
Which lung capacity is determined by the strength of contraction of the inspiratory muscles?
Which lung capacity is determined by the strength of contraction of the inspiratory muscles?
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What effect does a decrease in Functional Residual Capacity (FRC) have on Expiratory Reserve Volume (ERV)?
What effect does a decrease in Functional Residual Capacity (FRC) have on Expiratory Reserve Volume (ERV)?
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Which parameter greatly increases in obstructive lung disease?
Which parameter greatly increases in obstructive lung disease?
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Which method cannot be used to measure Residual Volume (RV)?
Which method cannot be used to measure Residual Volume (RV)?
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What is used to measure lung volumes when the subject must be conscious and cooperative?
What is used to measure lung volumes when the subject must be conscious and cooperative?
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What causes airway closure to begin at the Closing Volume?
What causes airway closure to begin at the Closing Volume?
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During the 2nd breath, where does most of the oxygen enter initially?
During the 2nd breath, where does most of the oxygen enter initially?
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What does tidal volume refer to?
What does tidal volume refer to?
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What is a consequence of aging on lung volumes and capacities?
What is a consequence of aging on lung volumes and capacities?
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Which condition could be a reasonable explanation for a patient's significantly decreased functional residual capacity?
Which condition could be a reasonable explanation for a patient's significantly decreased functional residual capacity?
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Which phase during expired gas measurement indicates the beginning of dependent airway closure?
Which phase during expired gas measurement indicates the beginning of dependent airway closure?
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If a seated person inspires from residual volume, where would most of the inhaled gas end up after the dead space?
If a seated person inspires from residual volume, where would most of the inhaled gas end up after the dead space?
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How do lung volumes change from standing to supine position?
How do lung volumes change from standing to supine position?
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What is a major characteristic of a restrictive lung disease?
What is a major characteristic of a restrictive lung disease?
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What is the function of a Spirometer?
What is the function of a Spirometer?
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What happens to FRC during obstructive lung disease?
What happens to FRC during obstructive lung disease?
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How does an increase in physiologic dead space typically occur in a healthy individual?
How does an increase in physiologic dead space typically occur in a healthy individual?
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What is the main function of functional residual capacity (FRC) in the lungs?
What is the main function of functional residual capacity (FRC) in the lungs?
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How does alveolar dead space differ from physiologic dead space?
How does alveolar dead space differ from physiologic dead space?
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What happens to the partial pressure of CO2 in blood if dead space increases if there is no compensation?
What happens to the partial pressure of CO2 in blood if dead space increases if there is no compensation?
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In which phase of respiration do the last 150 ml of air in the anatomic dead space remain not fresh?
In which phase of respiration do the last 150 ml of air in the anatomic dead space remain not fresh?
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Vital Capacity (VC) decreases in obstructive lung disease.
Vital Capacity (VC) decreases in obstructive lung disease.
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Anatomic dead space is part of physiologic dead space.
Anatomic dead space is part of physiologic dead space.
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The Bohr equation is used to measure alveolar ventilation.
The Bohr equation is used to measure alveolar ventilation.
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Alveolar ventilation affects alveolar gas tensions.
Alveolar ventilation affects alveolar gas tensions.
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Functional residual capacity (FRC) decreases when transitioning from standing to supine position.
Functional residual capacity (FRC) decreases when transitioning from standing to supine position.
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Regional differences in alveolar ventilation occur at Functional Residual Capacity (FRC) and Residual Volume (RV).
Regional differences in alveolar ventilation occur at Functional Residual Capacity (FRC) and Residual Volume (RV).
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Closing Volume is the volume of gas remaining in the lungs at the end of a normal tidal expiration.
Closing Volume is the volume of gas remaining in the lungs at the end of a normal tidal expiration.
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Alveolar ventilation mainly impacts regional distribution of alveolar oxygen and nitrogen.
Alveolar ventilation mainly impacts regional distribution of alveolar oxygen and nitrogen.
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Dalton's law explains the composition of respiratory gases in the alveoli.
Dalton's law explains the composition of respiratory gases in the alveoli.
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If a patient's functional residual capacity is significantly less than expected, which of the following positions is least likely to have caused this reduction?
If a patient's functional residual capacity is significantly less than expected, which of the following positions is least likely to have caused this reduction?
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What would be an expected outcome if a seated person inspires from residual volume and most of the inhaled gas remains in the anatomic dead space?
What would be an expected outcome if a seated person inspires from residual volume and most of the inhaled gas remains in the anatomic dead space?
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What is most likely to contribute to a paradoxical decrease in lung function test results?
What is most likely to contribute to a paradoxical decrease in lung function test results?
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