Pulmonary Function Tests (PFT) [] [] [] []
exam with verified detailed [] [] [] []
solutions
What is the primary function of the lungs? - Correct answer ✔1.
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Oxygenation of mixed venous blood. [] [] [] []
2. Removal of carbon dioxide from mixed venous blood.
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Primary function depends on the integrity of 4 things: - Correct
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answer ✔1. Airway [] []
2. Pulmonary vasculature
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3. Respiratory muscles
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4. Respiratory control mechanism
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PFTs help determine 7 things: - Correct answer ✔1. Presence of
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disease or abnormal lung function.
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2. Extent of dysfunction.
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3. Extent of impairment/disability
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4. Progression of disease.
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5. Nature of physiological disturbance.
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6. Effect or course of therapy.
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7. Aid clinical prognosis.
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, Common PFTs - Correct answer ✔1. Spirometry
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2. Diffusing capacity
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3. Body plethysmography
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4. Bronchial provocation
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5. Maximal inspiratory/expiratory pressure
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6. Exercise testing
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7. Arterial blood gasses
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Spirometry - Correct answer ✔Measures air flow and volumes.
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Flow/volume relationship - Correct answer ✔Peak flow reaches [] [] [] [] [] [] [] []
its maximal level somewhere near total lung capacity.
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As lung volume decreases, resistance increases due to
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intrathoracic airway narrowing. [] []
How air flows - Correct answer ✔Air flows from higher to lower
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pressure. There is a balance between forces: pressures trying to
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collapses and structures trying to keep airways open.
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FVC - Correct answer ✔Forced Vital Capacity (when person is
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forcing air out) [] []
FEV1 - Correct answer ✔Forced Expiratory Volume in one
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second. (Amount of air that can be blown out of lungs in one
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second)
exam with verified detailed [] [] [] []
solutions
What is the primary function of the lungs? - Correct answer ✔1.
[] [] [] [] [] [] [] [] [] [] [] []
Oxygenation of mixed venous blood. [] [] [] []
2. Removal of carbon dioxide from mixed venous blood.
[] [] [] [] [] [] [] []
Primary function depends on the integrity of 4 things: - Correct
[] [] [] [] [] [] [] [] [] [] []
answer ✔1. Airway [] []
2. Pulmonary vasculature
[] []
3. Respiratory muscles
[] []
4. Respiratory control mechanism
[] [] []
PFTs help determine 7 things: - Correct answer ✔1. Presence of
[] [] [] [] [] [] [] [] [] [] []
disease or abnormal lung function.
[] [] [] []
2. Extent of dysfunction.
[] [] []
3. Extent of impairment/disability
[] [] []
4. Progression of disease.
[] [] []
5. Nature of physiological disturbance.
[] [] [] []
6. Effect or course of therapy.
[] [] [] [] []
7. Aid clinical prognosis.
[] [] []
, Common PFTs - Correct answer ✔1. Spirometry
[] [] [] [] [] []
2. Diffusing capacity
[] []
3. Body plethysmography
[] []
4. Bronchial provocation
[] []
5. Maximal inspiratory/expiratory pressure
[] [] []
6. Exercise testing
[] []
7. Arterial blood gasses
[] [] []
Spirometry - Correct answer ✔Measures air flow and volumes.
[] [] [] [] [] [] [] []
Flow/volume relationship - Correct answer ✔Peak flow reaches [] [] [] [] [] [] [] []
its maximal level somewhere near total lung capacity.
[] [] [] [] [] [] []
As lung volume decreases, resistance increases due to
[] [] [] [] [] [] [] []
intrathoracic airway narrowing. [] []
How air flows - Correct answer ✔Air flows from higher to lower
[] [] [] [] [] [] [] [] [] [] [] []
pressure. There is a balance between forces: pressures trying to
[] [] [] [] [] [] [] [] [] []
collapses and structures trying to keep airways open.
[] [] [] [] [] [] []
FVC - Correct answer ✔Forced Vital Capacity (when person is
[] [] [] [] [] [] [] [] [] []
forcing air out) [] []
FEV1 - Correct answer ✔Forced Expiratory Volume in one
[] [] [] [] [] [] [] [] []
second. (Amount of air that can be blown out of lungs in one
[] [] [] [] [] [] [] [] [] [] [] [] []
second)
