PULMONARY FUNCTION TEST QUESTIONS |LATEST UPDATES 2025/2026 WITH
CORRECT ANSWERS |100% PASS GUARANTEED | GRADED A+ |
1.What are some of the indications for PFT? - ANSWER To assess disease in a patient with risk factors
(such as smoking)
Evaluation of symptoms such as chronic persistent cough, wheezing, dyspnea, and exertional cough or
chest pain
Objective assessment of bronchodilator therapy
Evaluation of effects of exposure to dusts or chemicals at work
Risk evaluation of patients prior to thoracic or upper abdominal surgery
Objective assessment of impairment or disability
2. Flow-Volume Loop- - ANSWER The forced expiratory and forced inspiratory maneuvers expressed in
graph form
3. Peak Expiratory Flow- - ANSWER The maximum speed of expiration, as measured with a peak flow
meter, a small, hand-held device used to monitor a person's ability to breathe out air
4. Total Lung Capacity (TLC) - - ANSWER The volume of lung for all phases of respiration, including
residual volume
5. Residual Volume- - ANSWER The amount of air remaining in the lungs after full expiration- this volume
cannot be directly measured
6. Vital Capacity (VC)- - ANSWER The total volume of gas that can be expelled after a full inspiration
7. Forced Vital Capacity (FVC) - - ANSWER The total volume of gas that can be forcefully exhaled after a
full inspiration, expressed in liters/second
8.Tidal Volume (TV)- - ANSWER The lung volume representing the normal volume of air displaced
between normal resting inhalation and exhalation
, 9. Forced Expiratory Volume (FEV1)- - ANSWER Maximal volume of air exhaled in the first second of a
forced exhalation that follows a full inspiration, expressed in liters
10. FEV1/FVC ratio- - ANSWER A calculated result that helps differentiate obstructive and restriction
patterns
11.What is flow volume loop? - ANSWER Include forced expiatory and forced inspiratory maneuvers
Measured when stridor is heard on exam and/or + unexplained dyspnea
Helps to diagnose upper airway obstruction (UAO); obstruction located in the pharynx, larynx, or trachea
(upper airways) is usually impossible to detect from standard FVC maneuvers
UAO will show a characteristic limitation of flow (plateau) during inhalation but little to no obstruction
during exhalation
12. PEFR = - ANSWER Peak Expiratory Flow Rate
13. What will a flow volume loop look like for a fixed upper airway obstruction? - ANSWER fixed upper
airway obstruction with flow limitation and flattening of both the inspiratory and expiratory loop.
14. What will a flow volume loop look like for a upper airway/extrathoracic obstruction? - ANSWER
UAO/extrathoracic obstruction with flow limitation and flattening of the inspiratory limb of the loop.
15. What will an intrathoracic obstruction look like? - ANSWER intrathoracic obstruction with flow
limitation and flattening of the expiratory limb of the loop.
16. What is the KEY component for diagnosing and managing asthma? - ANSWER SPIROMETRY
17. What is spirometry? - ANSWER Is a measure of exhaled and inhaler volumes,
expressed in liter/sec
Is cost affordable and can be done in office or at bedside
Used to follow the effectiveness of asthma and COPD management
CORRECT ANSWERS |100% PASS GUARANTEED | GRADED A+ |
1.What are some of the indications for PFT? - ANSWER To assess disease in a patient with risk factors
(such as smoking)
Evaluation of symptoms such as chronic persistent cough, wheezing, dyspnea, and exertional cough or
chest pain
Objective assessment of bronchodilator therapy
Evaluation of effects of exposure to dusts or chemicals at work
Risk evaluation of patients prior to thoracic or upper abdominal surgery
Objective assessment of impairment or disability
2. Flow-Volume Loop- - ANSWER The forced expiratory and forced inspiratory maneuvers expressed in
graph form
3. Peak Expiratory Flow- - ANSWER The maximum speed of expiration, as measured with a peak flow
meter, a small, hand-held device used to monitor a person's ability to breathe out air
4. Total Lung Capacity (TLC) - - ANSWER The volume of lung for all phases of respiration, including
residual volume
5. Residual Volume- - ANSWER The amount of air remaining in the lungs after full expiration- this volume
cannot be directly measured
6. Vital Capacity (VC)- - ANSWER The total volume of gas that can be expelled after a full inspiration
7. Forced Vital Capacity (FVC) - - ANSWER The total volume of gas that can be forcefully exhaled after a
full inspiration, expressed in liters/second
8.Tidal Volume (TV)- - ANSWER The lung volume representing the normal volume of air displaced
between normal resting inhalation and exhalation
, 9. Forced Expiratory Volume (FEV1)- - ANSWER Maximal volume of air exhaled in the first second of a
forced exhalation that follows a full inspiration, expressed in liters
10. FEV1/FVC ratio- - ANSWER A calculated result that helps differentiate obstructive and restriction
patterns
11.What is flow volume loop? - ANSWER Include forced expiatory and forced inspiratory maneuvers
Measured when stridor is heard on exam and/or + unexplained dyspnea
Helps to diagnose upper airway obstruction (UAO); obstruction located in the pharynx, larynx, or trachea
(upper airways) is usually impossible to detect from standard FVC maneuvers
UAO will show a characteristic limitation of flow (plateau) during inhalation but little to no obstruction
during exhalation
12. PEFR = - ANSWER Peak Expiratory Flow Rate
13. What will a flow volume loop look like for a fixed upper airway obstruction? - ANSWER fixed upper
airway obstruction with flow limitation and flattening of both the inspiratory and expiratory loop.
14. What will a flow volume loop look like for a upper airway/extrathoracic obstruction? - ANSWER
UAO/extrathoracic obstruction with flow limitation and flattening of the inspiratory limb of the loop.
15. What will an intrathoracic obstruction look like? - ANSWER intrathoracic obstruction with flow
limitation and flattening of the expiratory limb of the loop.
16. What is the KEY component for diagnosing and managing asthma? - ANSWER SPIROMETRY
17. What is spirometry? - ANSWER Is a measure of exhaled and inhaler volumes,
expressed in liter/sec
Is cost affordable and can be done in office or at bedside
Used to follow the effectiveness of asthma and COPD management
