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Exam (elaborations)

Pulmonary Function Tests (PFT)Questions with Complete Solutions

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Pulmonary Function Tests (PFT)Questions with Complete 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. Air...

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  • August 27, 2024
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Pulmonary Function Tests
  • Pulmonary Function Tests
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Pulmonary Function Tests (PFT)Questions with
Complete 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.

, Pulmonary Function Tests (PFT)Questions with
Complete Solutions
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.

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