Question 1

The normal FEV3 to FVC ratio is approximately:

Accepted Answer

A)  50%. 
B)  66%. 
C)  75%. 
D)  95%. 
A)  50%. 
B)  66%. 
C)  75%. 
D)  95%. D

Question 2

The maximal voluntary ventilation (MVV) test usually is performed over a period of:

Accepted Answer

A)  5 to 10 breaths. 
B)  12 to 15 s. 
C)  1 to 2 min. 
D)  5 to 10 min. 
A)  5 to 10 breaths. 
B)  12 to 15 s. 
C)  1 to 2 min. 
D)  5 to 10 min. B

Question 3

Which of the following are considered general purposes of performing pulmonary function tests (PFTs)?
1) The functional status of the lungs
2) The diffusion characteristics of the alveolar-capillary membrane
3) How much and how fast gas can be moved into and out of the lungs
4) The specific diagnosis of pulmonary disease

Accepted Answer

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

Question 4

Which of the following are parameters that have been studied to establish normal values for PFTs?
1) Gender
2) Height
3) Race
4) Weight

Accepted Answer

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

Question 5

Which of the following is the most common cause of erroneous forced vital capacity (FVC) test results?

Accepted Answer

A)  Maximal inspiratory effort 
B)  Age of the patient 
C)  Age of the equipment 
D)  Suboptimal coaching 
A)  Maximal inspiratory effort 
B)  Age of the patient 
C)  Age of the equipment 
D)  Suboptimal coaching

Question 6

Which of the following tests would be used to determine at what point oxygen consumption reaches its peak?

Accepted Answer

A)  Exercise challenge 
B)  Ventilatory capacity 
C)  Anaerobic threshold 
D)  Maximal oxygen uptake (O2max) 
A)  Exercise challenge 
B)  Ventilatory capacity 
C)  Anaerobic threshold 
D)  Maximal oxygen uptake (O2max)

Question 7

Which of the following tests would be used to determine at what point oxygen demand exceeds oxygen consumption during hard exercise?

Accepted Answer

A)  Exercise challenge 
B)  Ventilatory capacity 
C)  Anaerobic threshold 
D)  Maximal oxygen uptake (O2max) 
A)  Exercise challenge 
B)  Ventilatory capacity 
C)  Anaerobic threshold 
D)  Maximal oxygen uptake (O2max)

Question 8

The presence of an FVC that is significantly smaller than the slow vital capacity (SVC) is consistent with:

Accepted Answer

A)  poor inspiratory effort. 
B)  use of a bronchodilator. 
C)  air trapping. 
D)  forced exhalation. 
A)  poor inspiratory effort. 
B)  use of a bronchodilator. 
C)  air trapping. 
D)  forced exhalation.

Question 9

Which of the following medications is used most commonly during bronchoprovocation testing?

Accepted Answer

A)  Methacholine 
B)  Isoproterenol 
C)  Methylene blue 
D)  Metaproterenol 
A)  Methacholine 
B)  Isoproterenol 
C)  Methylene blue 
D)  Metaproterenol

Question 10

The DLCO is a test that is used to measure the:

Accepted Answer

A)  amount of carbon monoxide in the blood. 
B)  thickness of the alveolar-capillary membrane. 
C)  diffusion coefficient of carbon monoxide in the lungs. 
D)  ability of a gas to move across the alveolar-capillary membrane. 
A)  amount of carbon monoxide in the blood. 
B)  thickness of the alveolar-capillary membrane. 
C)  diffusion coefficient of carbon monoxide in the lungs. 
D)  ability of a gas to move across the alveolar-capillary membrane.

Question 11

The ERV is limited in clinical usefulness. It may be reduced in which of the following cases?
1) Obesity
2) Restrictive disorders
3) Obstructive disorders
4) Patients making a poor effort during testing

Accepted Answer

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

Question 12

The concentration of carbon monoxide used in a DLCO study is approximately:

Accepted Answer

A)  0.1%. 
B)  0.4%. 
C)  1.4%. 
D)  10%. 
A)  0.1%. 
B)  0.4%. 
C)  1.4%. 
D)  10%.

Question 13

Which of the following values are needed to determine a patient's minute volume?
1) Respiratory rate
2) Tidal volume
3) Forced vital capacity
4) Maximal voluntary ventilation

Accepted Answer

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

Question 14

The forced expiratory volume in 1 s (FEV1) usually is expressed as a percentage of the observed:

Accepted Answer

A)  PEF. 
B)  TLC. 
C)  FEV3. 
D)  FVC. 
A)  PEF. 
B)  TLC. 
C)  FEV3. 
D)  FVC.

Question 15

How would the inspiratory reserve volume and the inspiratory reserve capacity be described in a patient with a mild-to-moderate restrictive disorder?

Accepted Answer

A)  Normal 
B)  Abnormally increased 
C)  Abnormally decreased 
D)  Not measured 
A)  Normal 
B)  Abnormally increased 
C)  Abnormally decreased 
D)  Not measured

Question 16

Which of the following diseases are associated with a reduced DLCO?
1) Emphysema
2) Chronic bronchitis
3) Pulmonary embolus
4) Pulmonary fibrosis

Accepted Answer

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

Question 17

To protect oneself from infection, pulmonary function testing should be conducted using which of the following precautions?
1) Standard precautions on all patients
2) Airborne precautions on all patients
3) Handwashing in between patients
4) Handwashing after handling used circuit components

Accepted Answer

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

Question 18

Which of the following tests is more sensitive than the FEV1 in detecting airway obstruction?

Accepted Answer

A)  FVC 
B)  FEV1/FVC 
C)  FEV3 
D)  FEF25% to 75% 
A)  FVC 
B)  FEV1/FVC 
C)  FEV3 
D)  FEF25% to 75%

Question 19

The reason why carbon monoxide is used in DLCO studies instead of oxygen is because carbon monoxide is:

Accepted Answer

A)  more readily available than oxygen. 
B)  neither diffusion nor perfusion limited. 
C)  perfusion limited and not diffusion limited. 
D)  diffusion limited and not perfusion limited. 
A)  more readily available than oxygen. 
B)  neither diffusion nor perfusion limited. 
C)  perfusion limited and not diffusion limited. 
D)  diffusion limited and not perfusion limited.

Question 20

Which of the following conditions are determinants of gas exchange across the membrane?
1) Amount of oxygen in the blood
2) Thickness of the alveolar-capillary membrane
3) Diffusion coefficient of carbon monoxide in the lungs
4) Surface area of the membrane

Accepted Answer

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

The normal FEV₃ to FVC ratio is approximately:

The maximal voluntary ventilation (MVV) test usually is performed over a period of:

Which of the following are parameters that have been studied to establish normal values for PFTs? 1) Gender 2) Height 3) Race 4) Weight

Which of the following is the most common cause of erroneous forced vital capacity (FVC) test results?

Which of the following tests would be used to determine at what point oxygen consumption reaches its peak?

Which of the following tests would be used to determine at what point oxygen demand exceeds oxygen consumption during hard exercise?

The presence of an FVC that is significantly smaller than the slow vital capacity (SVC) is consistent with:

Which of the following medications is used most commonly during bronchoprovocation testing?

The DLCO is a test that is used to measure the:

The ERV is limited in clinical usefulness. It may be reduced in which of the following cases? 1) Obesity 2) Restrictive disorders 3) Obstructive disorders 4) Patients making a poor effort during testing

The concentration of carbon monoxide used in a DLCO study is approximately:

Which of the following values are needed to determine a patient's minute volume? 1) Respiratory rate 2) Tidal volume 3) Forced vital capacity 4) Maximal voluntary ventilation

The forced expiratory volume in 1 s (FEV₁) usually is expressed as a percentage of the observed:

How would the inspiratory reserve volume and the inspiratory reserve capacity be described in a patient with a mild-to-moderate restrictive disorder?

Which of the following diseases are associated with a reduced DLCO? 1) Emphysema 2) Chronic bronchitis 3) Pulmonary embolus 4) Pulmonary fibrosis

To protect oneself from infection, pulmonary function testing should be conducted using which of the following precautions? 1) Standard precautions on all patients 2) Airborne precautions on all patients 3) Handwashing in between patients 4) Handwashing after handling used circuit components

Which of the following tests is more sensitive than the FEV₁ in detecting airway obstruction?

The reason why carbon monoxide is used in DLCO studies instead of oxygen is because carbon monoxide is:

Which of the following conditions are determinants of gas exchange across the membrane? 1) Amount of oxygen in the blood 2) Thickness of the alveolar-capillary membrane 3) Diffusion coefficient of carbon monoxide in the lungs 4) Surface area of the membrane

Preparing for the Patient Encounter

The Medical History and the Interview

Cardiopulmonary Symptoms

Vital Signs

Fundamentals of Physical Examination

Neurologic Assessment of the Respiratory Care Patient

Clinical Laboratory Studies

Interpretation of Blood Gases

Clinical Application of the Chest Radiograph

Interpretation of the Electrocardiogram

Assessment of the Neonatal and Pediatric Patient

Assessment of the Older Patient

Respiratory Monitoring in the Intensive Care Unit

Assessment of Cardiac Output

Assessment of Hemodynamic Pressures

Flexible Fiber-Optic Bronchoscopy

Nutritional Assessment of Patients With Respiratory Disease

Assessment of Sleep and Breathing

Assessment of the Home Care Patient

Documentation of the Patient Assessment

Filters

Exam 9: Pulmonary Function Testing

The normal FEV3 to FVC ratio is approximately:

The maximal voluntary ventilation (MVV) test usually is performed over a period of:

Which of the following are parameters that have been studied to establish normal values for PFTs? 1) Gender 2) Height 3) Race 4) Weight

Which of the following is the most common cause of erroneous forced vital capacity (FVC) test results?

Which of the following tests would be used to determine at what point oxygen consumption reaches its peak?

Which of the following tests would be used to determine at what point oxygen demand exceeds oxygen consumption during hard exercise?

The presence of an FVC that is significantly smaller than the slow vital capacity (SVC) is consistent with:

Which of the following medications is used most commonly during bronchoprovocation testing?

The DLCO is a test that is used to measure the:

The ERV is limited in clinical usefulness. It may be reduced in which of the following cases? 1) Obesity 2) Restrictive disorders 3) Obstructive disorders 4) Patients making a poor effort during testing

The concentration of carbon monoxide used in a DLCO study is approximately:

Which of the following values are needed to determine a patient's minute volume? 1) Respiratory rate 2) Tidal volume 3) Forced vital capacity 4) Maximal voluntary ventilation

The forced expiratory volume in 1 s (FEV1) usually is expressed as a percentage of the observed:

How would the inspiratory reserve volume and the inspiratory reserve capacity be described in a patient with a mild-to-moderate restrictive disorder?

Which of the following diseases are associated with a reduced DLCO? 1) Emphysema 2) Chronic bronchitis 3) Pulmonary embolus 4) Pulmonary fibrosis

To protect oneself from infection, pulmonary function testing should be conducted using which of the following precautions? 1) Standard precautions on all patients 2) Airborne precautions on all patients 3) Handwashing in between patients 4) Handwashing after handling used circuit components

Which of the following tests is more sensitive than the FEV1 in detecting airway obstruction?

The reason why carbon monoxide is used in DLCO studies instead of oxygen is because carbon monoxide is:

Which of the following conditions are determinants of gas exchange across the membrane? 1) Amount of oxygen in the blood 2) Thickness of the alveolar-capillary membrane 3) Diffusion coefficient of carbon monoxide in the lungs 4) Surface area of the membrane

Preparing for the Patient Encounter

The Medical History and the Interview

Cardiopulmonary Symptoms

Vital Signs

Fundamentals of Physical Examination

Neurologic Assessment of the Respiratory Care Patient

Clinical Laboratory Studies

Interpretation of Blood Gases

Clinical Application of the Chest Radiograph

Interpretation of the Electrocardiogram

Assessment of the Neonatal and Pediatric Patient

Assessment of the Older Patient

Respiratory Monitoring in the Intensive Care Unit

Assessment of Cardiac Output

Assessment of Hemodynamic Pressures

Flexible Fiber-Optic Bronchoscopy

Nutritional Assessment of Patients With Respiratory Disease

Assessment of Sleep and Breathing

Assessment of the Home Care Patient

Documentation of the Patient Assessment

Filters

The normal FEV₃ to FVC ratio is approximately:

The forced expiratory volume in 1 s (FEV₁) usually is expressed as a percentage of the observed:

Which of the following tests is more sensitive than the FEV₁ in detecting airway obstruction?