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Questions and Answers
What causes air to move in or out of the lungs and maintains lung inflation?
What causes air to move in or out of the lungs and maintains lung inflation?
- Flow gradients
- Volume gradients
- Temperature gradients
- Pressure gradients (correct)
What is the definition of lung compliance?
What is the definition of lung compliance?
- Change in lung recoil resulting from a unit of pressure change
- Change in lung volume resulting from a unit of pressure change (correct)
- Change in airway resistance resulting from a unit of pressure change
- Change in elastance resulting from a unit of pressure change
In stiff lungs, what is the relationship between elasticity and compliance?
In stiff lungs, what is the relationship between elasticity and compliance?
- The more elastic the lung, the more its compliance
- The more elastic the lung, the less its compliance
- The less elastic the lung, the less its compliance (correct)
- The less elastic the lung, the more its compliance
Which condition is characterized by a loss of elastic lung tissue?
Which condition is characterized by a loss of elastic lung tissue?
What is the normal value of lung compliance?
What is the normal value of lung compliance?
What is the result of a high recoil force in the lungs?
What is the result of a high recoil force in the lungs?
What is the main reason why patients with pulmonary fibrosis adopt a rapid, shallow breathing strategy?
What is the main reason why patients with pulmonary fibrosis adopt a rapid, shallow breathing strategy?
What is the term for the conducting airways from the mouth and nose down to and including terminal bronchioles?
What is the term for the conducting airways from the mouth and nose down to and including terminal bronchioles?
What is the approximate amount of anatomical dead space in normal adults?
What is the approximate amount of anatomical dead space in normal adults?
What is the approximate PAO2 of a person breathing room air at sea level, with a PaCO2 equal to 40 mm Hg and an R equal to 0.8?
What is the approximate PAO2 of a person breathing room air at sea level, with a PaCO2 equal to 40 mm Hg and an R equal to 0.8?
Which of the following conditions can increase the length of the diffusion path?
Which of the following conditions can increase the length of the diffusion path?
What is the primary function of the anatomical dead space?
What is the primary function of the anatomical dead space?
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