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Pulmonary Function Tests (PFT) Exam Questions With 100% Correct Answers 2024
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Pulmonary Function Tests (PFT) Exam Questions With 100% Correct Answers
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Pulmonary Function Tests (PFT) ExamQuestions With 100% Correct Answers
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)
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