Question 1

Which of the following tests would be used to determine whether there is gross misdistribution of ventilation in the lungs of a patient given a diagnosis of emphysema?

Accepted Answer

A)  DLCO 
B)  Helium dilution 
C)  Closing volume 
D)  Nitrogen washout

Question 2

Which level of VC is associated with an increased risk of respiratory failure?

Accepted Answer

A)  <50 mL/kg 
B)  <40 mL/kg 
C)  <20 mL/kg 
D)  <15 mL/kg

Question 3

Which of the following is considered the primary instrument used in performing PFTs?

Accepted Answer

A)  Spirometer 
B)  Flowmeter 
C)  Thermistor 
D)  Spirograph

Question 4

What is the normal minute ventilation of an average person at rest?

Accepted Answer

A)  15 L/min

Question 5

A restrictive defect is present when lung volumes are reduced to less than what percentage of predicted levels?

Accepted Answer

A)  60% 
B)  70% 
C)  80% 
D)  90%

Question 6

The FEV3 measurement is an indicator of flow in which airways?

Accepted Answer

A)  Large 
B)  Medium 
C)  Small 
D)  Medium and small

Question 7

The normal FEV1 to FVC ratio is approximately:

Accepted Answer

A)  50%. 
B)  66%. 
C)  75%. 
D)  90%.

Question 8

The body plethysmograph uses which of the following gas laws?

Accepted Answer

A)  Boyle's law 
B)  Charles' law 
C)  Gay-Lussac's law 
D)  Combined gas law

Question 9

The closing-volume (CV) test is used for early diagnosis of obstruction of airways of which of the following airway size(s)?

Accepted Answer

A)  Large 
B)  Medium 
C)  Small 
D)  Large and medium

Question 10

A loss of elasticity of the lung tissue will cause the FRC to:

Accepted Answer

A)  increase. 
B)  decrease. 
C)  stay the same. 
D)  none of the above.

Question 11

Which level of vital capacity (VC) is associated with an increased risk of postoperative respiratory complications?

Accepted Answer

A)  <50 mL/kg 
B)  <40 mL/kg 
C)  <20 mL/kg 
D)  <15 mL/kg

Question 12

To determine whether there is a positive response to bronchodilator therapy, improvement must be seen in which of the following values?
1) FVC
2) FEV1
3) FEF25% to 75%
4) FEF75% to 85%

Accepted Answer

A) 1 and 4 
B) 2 and 3 
C) 1, 2, and 3 
D) 2, 3, and 4

Exam 9: Pulmonary Function Testing

Which of the following tests would be used to determine whether there is gross misdistribution of ventilation in the lungs of a patient given a diagnosis of emphysema?

Which level of VC is associated with an increased risk of respiratory failure?

Which of the following is considered the primary instrument used in performing PFTs?

What is the normal minute ventilation of an average person at rest?

A restrictive defect is present when lung volumes are reduced to less than what percentage of predicted levels?

The FEV₃ measurement is an indicator of flow in which airways?

The normal FEV₁ to FVC ratio is approximately:

The body plethysmograph uses which of the following gas laws?

The closing-volume (CV) test is used for early diagnosis of obstruction of airways of which of the following airway size(s) ?

A loss of elasticity of the lung tissue will cause the FRC to:

Which level of vital capacity (VC) is associated with an increased risk of postoperative respiratory complications?

To determine whether there is a positive response to bronchodilator therapy, improvement must be seen in which of the following values? 1) FVC 2) FEV₁ 3) FEF_{25% to 75%} 4) FEF_{75% to 85%}

Exam 9: Pulmonary Function Testing

Which of the following tests would be used to determine whether there is gross misdistribution of ventilation in the lungs of a patient given a diagnosis of emphysema?

Which level of VC is associated with an increased risk of respiratory failure?

Which of the following is considered the primary instrument used in performing PFTs?

What is the normal minute ventilation of an average person at rest?

A restrictive defect is present when lung volumes are reduced to less than what percentage of predicted levels?

The FEV3 measurement is an indicator of flow in which airways?

The normal FEV1 to FVC ratio is approximately:

The body plethysmograph uses which of the following gas laws?

The closing-volume (CV) test is used for early diagnosis of obstruction of airways of which of the following airway size(s) ?

A loss of elasticity of the lung tissue will cause the FRC to:

Which level of vital capacity (VC) is associated with an increased risk of postoperative respiratory complications?

To determine whether there is a positive response to bronchodilator therapy, improvement must be seen in which of the following values? 1) FVC 2) FEV1 3) FEF25% to 75% 4) FEF75% to 85%

The FEV₃ measurement is an indicator of flow in which airways?

The normal FEV₁ to FVC ratio is approximately:

To determine whether there is a positive response to bronchodilator therapy, improvement must be seen in which of the following values? 1) FVC 2) FEV₁ 3) FEF_{25% to 75%} 4) FEF_{75% to 85%}