Question 1

What is the predicted normal tidal volume in the adult patient?

Accepted Answer

A)  300 to 450 ml 
B)  400 to 500 ml 
C)  500 to 700 ml 
D)  450 to 750 ml 
A)  300 to 450 ml 
B)  400 to 500 ml 
C)  500 to 700 ml 
D)  450 to 750 ml C

Question 2

Which of the following pulmonary function devices directly collect and measure gas volumes?
1) Water-sealed spirometer
2) Dry rolling-seal spirometer
3) Bellows spirometer
4) Pneumotachometer

Accepted Answer

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

Question 3

What is the normal predicted total lung capacity (TLC) for adults?

Accepted Answer

A)  Approximately 6 L 
B)  Approximately 7 L 
C)  Approximately 8 L 
D)  Approximately 9 L 
A)  Approximately 6 L 
B)  Approximately 7 L 
C)  Approximately 8 L 
D)  Approximately 9 L A

Question 4

Which of the following techniques are used to measure residual volume?
1) Helium dilution
2) Body plethysmography
3) Nitrogen washout
4) Flow-volume loops

Accepted Answer

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

Question 5

What conclusions can you draw from the following data, obtained from a 41-year-old man who admits to "occasional smoking" but otherwise reveals no past history of pulmonary problems?

Accepted Answer

A)  Results indicate small airway obstruction. 
B)  Results indicate generalized airway obstruction. 
C)  Results indicate a restrictive lung disorder. 
D)  Results indicate a combined disease process. 
A)  Results indicate small airway obstruction. 
B)  Results indicate generalized airway obstruction. 
C)  Results indicate a restrictive lung disorder. 
D)  Results indicate a combined disease process.

Question 6

While checking the accuracy of a portable spirometer for volumetric measures with a calibrated super syringe, you obtain a mean measured value of 2.7 L. What is the percent error of this instrument?

Accepted Answer

A) 1% 
B) 10% 
C) 30% 
D) 90% 
A) 1% 
B) 10% 
C) 30% 
D) 90%

Question 7

What is the predicted normal for the peak expiratory flow (PEF) in the average man?

Accepted Answer

A)  5.5 L/sec 
B)  6.5 L/sec 
C)  8.0 L/sec 
D)  9.5 L/sec 
A)  5.5 L/sec 
B)  6.5 L/sec 
C)  8.0 L/sec 
D)  9.5 L/sec

Question 8

How reliable is the tidal volume measurement in predicting the type of lung disease present?

Accepted Answer

A)  Very reliable 
B)  Somewhat reliable 
C)  Not reliable 
D)  Reliable but only in certain age groups 
A)  Very reliable 
B)  Somewhat reliable 
C)  Not reliable 
D)  Reliable but only in certain age groups

Question 9

What do relative contraindications for lung volume determinations include?
1) Recent cataract removal surgery
2) Unstable cardiovascular status
3) Treated pneumothorax
4) Hemoptysis of unknown origin

Accepted Answer

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

Question 10

A patient has an expired minute ventilation of 14.2 L and a ventilatory rate of 25/min. What is the average VT?

Accepted Answer

A)  568 ml 
B)  635 ml 
C)  725 ml 
D)  410 ml 
A)  568 ml 
B)  635 ml 
C)  725 ml 
D)  410 ml

Question 11

What conclusions can you draw from the following data, obtained on a 67-year-old, 76-kg man admitted for pulmonary complications arising from silicosis?

Accepted Answer

A)  Results indicate generalized airway obstruction. 
B)  Results indicate normal pulmonary function. 
C)  Results indicate a combined disease process. 
D)  Results indicate a restrictive lung disorder. 
A)  Results indicate generalized airway obstruction. 
B)  Results indicate normal pulmonary function. 
C)  Results indicate a combined disease process. 
D)  Results indicate a restrictive lung disorder.

Question 12

Which of the following are indications for assessing pulmonary function?
1) Screen for pulmonary disease.
2) Evaluate patients for surgical risk.
3) Assess the progression of disease.
4) Assist in diagnosing cardiac disability.

Accepted Answer

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

Question 13

A patient has a vital capacity of 4200 ml, a functional residual capacity (FRC) of 3300 ml, and an expiratory reserve volume (ERV) of 1500 ml. What is the residual volume (RV)?

Accepted Answer

A)  5700 ml 
B)  2700 ml 
C)  1800 ml 
D)  7500 ml 
A)  5700 ml 
B)  2700 ml 
C)  1800 ml 
D)  7500 ml

Question 14

When used to determine functional residual capacity, the body plethysmograph operates on which of the following physical principles?

Accepted Answer

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

Question 15

Tests of pulmonary mechanics include:
1) maximum voluntary ventilation.
2) functional residual capacity.
3) forced expiratory flows.
4) forced expiratory volumes.

Accepted Answer

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

Question 16

Which of the following statements is false regarding measurement of the patient's forced vital capacity (FVC)?

Accepted Answer

A)  The patient can be sitting or standing. 
B)  Nose clips are not required. 
C)  It is an effort-dependent test. 
D)  Accurate results can be obtained without patient cooperation. 
A)  The patient can be sitting or standing. 
B)  Nose clips are not required. 
C)  It is an effort-dependent test. 
D)  Accurate results can be obtained without patient cooperation.

Question 17

Which of the following statements is false about the FEV1 measurement?

Accepted Answer

A)  It is a volume measurement. 
B)  The recorded FEV1 must come from the same forced vital capacity (FV
C)  effort. 
C)  It is often compared to the size of the FVC. 
D)  It is a popular test. 
A)  It is a volume measurement. 
B)  The recorded FEV1 must come from the same forced vital capacity (FV
C)  effort. 
C)  It is often compared to the size of the FVC. 
D)  It is a popular test.

Question 18

Which of the following adverse reactions is not typically seen with pulmonary function testing?

Accepted Answer

A)  Syncope 
B)  Cough 
C)  Hemoptysis 
D)  Chest pain 
A)  Syncope 
B)  Cough 
C)  Hemoptysis 
D)  Chest pain

Question 19

During a helium dilution test for functional residual capacity, you notice that it takes 19 min for equilibration between the gas concentrations in the spirometer and the patient's lungs. Based on this information, what can you conclude?

Accepted Answer

A)  The patient has restrictive lung disease. 
B)  The spirometer is leaking helium. 
C)  The patient has obstructive lung disease. 
D)  Insufficient oxygen was added to the system. 
A)  The patient has restrictive lung disease. 
B)  The spirometer is leaking helium. 
C)  The patient has obstructive lung disease. 
D)  Insufficient oxygen was added to the system.

Question 20

During a helium (He) dilution functional residual capacity (FRC) measurement, the technologist first bleeds in 500 ml of He (He Vol) and obtains an initial reading of 4.0% (FiHe). After equilibration, the second He reading is 3.2% (FfHe). What is the patient's FRC?

Accepted Answer

A)  4450 ml 
B)  3125 ml 
C)  2680 ml 
D)  3670 ml 
A)  4450 ml 
B)  3125 ml 
C)  2680 ml 
D)  3670 ml

Exam 20: Pulmonary Function Testing

What is the predicted normal tidal volume in the adult patient?

Which of the following pulmonary function devices directly collect and measure gas volumes? 1) Water-sealed spirometer 2) Dry rolling-seal spirometer 3) Bellows spirometer 4) Pneumotachometer

What is the normal predicted total lung capacity (TLC) for adults?

Which of the following techniques are used to measure residual volume? 1) Helium dilution 2) Body plethysmography 3) Nitrogen washout 4) Flow-volume loops

What conclusions can you draw from the following data, obtained from a 41-year-old man who admits to "occasional smoking" but otherwise reveals no past history of pulmonary problems?

While checking the accuracy of a portable spirometer for volumetric measures with a calibrated super syringe, you obtain a mean measured value of 2.7 L. What is the percent error of this instrument?

What is the predicted normal for the peak expiratory flow (PEF) in the average man?

How reliable is the tidal volume measurement in predicting the type of lung disease present?

What do relative contraindications for lung volume determinations include? 1) Recent cataract removal surgery 2) Unstable cardiovascular status 3) Treated pneumothorax 4) Hemoptysis of unknown origin

A patient has an expired minute ventilation of 14.2 L and a ventilatory rate of 25/min. What is the average VT?

What conclusions can you draw from the following data, obtained on a 67-year-old, 76-kg man admitted for pulmonary complications arising from silicosis?

Which of the following are indications for assessing pulmonary function? 1) Screen for pulmonary disease. 2) Evaluate patients for surgical risk. 3) Assess the progression of disease. 4) Assist in diagnosing cardiac disability.

A patient has a vital capacity of 4200 ml, a functional residual capacity (FRC) of 3300 ml, and an expiratory reserve volume (ERV) of 1500 ml. What is the residual volume (RV)?

When used to determine functional residual capacity, the body plethysmograph operates on which of the following physical principles?

Tests of pulmonary mechanics include: 1) maximum voluntary ventilation. 2) functional residual capacity. 3) forced expiratory flows. 4) forced expiratory volumes.

Which of the following statements is false regarding measurement of the patient's forced vital capacity (FVC)?

Which of the following statements is false about the FEV1 measurement?

Which of the following adverse reactions is not typically seen with pulmonary function testing?

During a helium dilution test for functional residual capacity, you notice that it takes 19 min for equilibration between the gas concentrations in the spirometer and the patient's lungs. Based on this information, what can you conclude?

During a helium (He) dilution functional residual capacity (FRC) measurement, the technologist first bleeds in 500 ml of He (He Vol) and obtains an initial reading of 4.0% (FiHe). After equilibration, the second He reading is 3.2% (FfHe). What is the patient's FRC?

History of Respiratory Care

Delivering Evidence-Based Respiratory Care

Quality, Patient Safety, and Communication, and Recordkeeping

Principles of Infection Prevention and Control

Ethical and Legal Implications of Practice

Physical Principles of Respiratory Care

E-Medicine in Respiratory Care

Fundamentals of Respiratory Care Research

The Respiratory System

The Cardiovascular System

Ventilation

Gas Exchange and Transport

Solutions, Body Fluids, and Electrolytes

Acid-Base Balance

Regulation of Breathing

Bedside Assessment of the Patient

Interpreting Clinical and Laboratory Data

Interpreting the Electrocardiogram

Analysis and Monitoring of Gas Exchange

Review of Thoracic Imaging

Flexible Bronchoscopy and the Respiratory Therapist

Nutrition Assessment

Pulmonary Infections

Obstructive Lung Disease: Chronic Obstructive Pulmonary Disease Copd, Asthma, and Related Diseases

Interstitial Lung Disease

Pleural Diseases

Pulmonary Vascular Disease

Acute Respiratory Distress Syndrome

Trauma, Burns and Near Drowning

Lung Cancer

Neuromuscular and Other Diseases of the Chest Wall

Disorders of Sleep

Neonatal and Pediatric Respiratory Disorders

Airway Pharmacology

Airway Management

Emergency Cardiovascular Life Support

Humidity and Bland Aerosol Therapy

Aerosol Drug Therapy

Storage and Delivery of Medical Gases

Medical Gas Therapy

Lung Expansion Therapy

Airway Clearance Therapy Act

Respiratory Failure and the Need for Ventilatory Support

Mechanical Ventilators

Physiology of Ventilatory Support

Patient Ventilator Interaction

Initiating and Adjusting Invasive Ventilatory Support

Noninvasive Ventilation

Extracorporeal Life Support Ecls

Monitoring the Patient in the Intensive Care Unit

Discontinuing Ventilatory Support

Neonatal and Pediatric Respiratory Care

Patient Education and Health Promotion

Cardiopulmonary Rehabilitation

Respiratory Care in Alternative Settings

Filters

A patient has an expired minute ventilation of 14.2 L and a ventilatory rate of 25/min. What is the average V_T?

Which of the following statements is false about the FEV₁ measurement?