Question 1

You set up an Oxy-Hood with an FIO2 of 0.5 for a newborn infant. What is the maximum time that should pass before assessing this patient's PaO2 or SaO2?

Accepted Answer

A) 1 hour 
B) 2 hours 
C) 8 hours 
D) 12 hours 
A) 1 hour 
B) 2 hours 
C) 8 hours 
D) 12 hours

Question 2

You design an air-entrainment system that mixes air with O2 at a fixed ratio of 1:7 (1 L air to 7 L O2). About what O2 will this device provide?

Accepted Answer

A) 33% 
B) 40% 
C) 80% 
D) 90% 
A) 33% 
B) 40% 
C) 80% 
D) 90%

Question 3

A physician places a patient in respiratory failure on 100% O2. To avoid the hazards of O2 toxicity, you would recommend that every effort be made to reduce this FIO2 to less than 50% within what time frame?

Accepted Answer

A) 8 hours 
B) 24 hours 
C) 48 hours 
D) 5 days 
A) 8 hours 
B) 24 hours 
C) 48 hours 
D) 5 days

Question 4

Retinopathy of prematurity (ROP) is a potentially serious management problem mainly in the care of whom?

Accepted Answer

A) premature or low-birth-weight infants 
B) cystic fibrosis patients 
C) children with asthma 
D) patients with acute respiratory distress syndrome (ARDS) 
A) premature or low-birth-weight infants 
B) cystic fibrosis patients 
C) children with asthma 
D) patients with acute respiratory distress syndrome (ARDS)

Question 5

What is the minimum flow setting for a simple mask applied to an adult?

Accepted Answer

A) 3 L/min 
B) 5 L/min 
C) 8 L/min 
D) 10 L/min 
A) 3 L/min 
B) 5 L/min 
C) 8 L/min 
D) 10 L/min

Question 6

Benefits of properly applied O2 therapy in patients with chronic hypoxemia include all of the following except:

Accepted Answer

A) reversal of pulmonary vasoconstriction 
B) relief of pulmonary hypertension 
C) decreased right ventricular workload 
D) improved pulmonary diffusing capacity 
A) reversal of pulmonary vasoconstriction 
B) relief of pulmonary hypertension 
C) decreased right ventricular workload 
D) improved pulmonary diffusing capacity

Question 7

What is the level of SpO2 typically associated with discontinuation of O2 therapy?

Accepted Answer

A) 88% 
B) 90% 
C) 92% 
D) 94% 
A) 88% 
B) 90% 
C) 92% 
D) 94%

Question 8

To minimize the risk of retinopathy of prematurity (ROP), the American Academy of Pediatrics recommends keeping the PaO2 below what level?

Accepted Answer

A) 60 mm Hg 
B) 70 mm Hg 
C) 80 mm Hg 
D) 90 mm Hg 
A) 60 mm Hg 
B) 70 mm Hg 
C) 80 mm Hg 
D) 90 mm Hg

Question 9

A patient receiving 3 L/min O2 through a nasal cannula has a measured SpO2 of 93% and no clinical signs of hypoxemia. At this point, what should you recommend?

Accepted Answer

A) decreasing the flow to 2 L/min and rechecking the SpO2 
B) maintaining the therapy as is and rechecking the SpO2 on the next shift 
C) increasing the flow to 4 L/min and rechecking the SpO2 
D) discontinuing the O2 therapy 
A) decreasing the flow to 2 L/min and rechecking the SpO2 
B) maintaining the therapy as is and rechecking the SpO2 on the next shift 
C) increasing the flow to 4 L/min and rechecking the SpO2 
D) discontinuing the O2 therapy

Question 10

In which of the following clinical situations would you recommend hyperbaric oxygen (HBO) therapy, if available?
I.carbon monoxide poisoning
II.respiratory or cardiac arrest
III.severe trauma
IV.cyanide poisoning

Accepted Answer

A) I and IV 
B) II and III 
C) I, II, III, and IV 
D) I, II, and IV only 
A) I and IV 
B) II and III 
C) I, II, III, and IV 
D) I, II, and IV only

Question 11

Which of the following factors will decrease the FIO2 delivered by a low-flow O2 system?
I.short inspiratory time
II.fast rate of breathing
III.lower O2 input
IV.large minute ventilation

Accepted Answer

A) II and IV 
B) I, II, and III 
C) III and IV 
D) I, II, III, and IV 
A) II and IV 
B) I, II, and III 
C) III and IV 
D) I, II, III, and IV

Question 12

Retinopathy of prematurity may result in which of the following?

Accepted Answer

A) dyspnea 
B) pneumonia 
C) atelectasis 
D) blindness 
A) dyspnea 
B) pneumonia 
C) atelectasis 
D) blindness

Question 13

A patient breathing 100% O2 for 24 hours or longer would most likely exhibit which of the following?
I.decreased DLCO
II.decreased CL
III.increased PAO2 - PaO2
IV.decreased VC

Accepted Answer

A) II and IV 
B) I, II, and III 
C) III and IV 
D) I, II, III, and IV 
A) II and IV 
B) I, II, and III 
C) III and IV 
D) I, II, III, and IV

Question 14

Which of the following is FALSE about NO2?

Accepted Answer

A) NO2 levels greater than 10 ppm can cause hemorrhage, pulmonary edema, and death. 
B) NO2 is produced spontaneously whenever NO is exposed to O2. 
C) The Occupational Safety and Health Administration (OSH
A)  safety limit for NO2 exposure is 5 ppm. 
D) NO2 exposure should be kept below 5 ppm during NO administration. 
A) NO2 levels greater than 10 ppm can cause hemorrhage, pulmonary edema, and death. 
B) NO2 is produced spontaneously whenever NO is exposed to O2. 
C) The Occupational Safety and Health Administration (OSH
A)  safety limit for NO2 exposure is 5 ppm. 
D) NO2 exposure should be kept below 5 ppm during NO administration.

Question 15

You start a chronic obstructive pulmonary disease (COPD) patient on a nasal O2 cannula at 2 L/min. What is the maximum time that should pass before assessing this patient's PaO2 or SaO2?

Accepted Answer

A) 2 hours 
B) 8 hours 
C) 12 hours 
D) 72 hours 
A) 2 hours 
B) 8 hours 
C) 12 hours 
D) 72 hours

Question 16

In giving O2 to an infant through a hood, which of the following is/are correct?
I.	A neutral thermal environment should be maintained.
II.	Gases should be directed away from the infant’s face.
III.	High input flow (greater than 10 to 15 L/min) should be avoided.
IV.	A minimum flow of 7 L/min must be maintained.

Accepted Answer

A) I, II, and III 
B) II and IV 
C) II, III, and IV 
D) I, II, III, and IV 
A) I, II, and III 
B) II and IV 
C) II, III, and IV 
D) I, II, III, and IV

Question 17

Which of the following factors should be used in properly selecting an O2 delivery device?
I.knowledge of general performance of the device
II.physician's preference
III.individual capabilities of the equipment

Accepted Answer

A) II and III 
B) I and II 
C) I, II, and III 
D) I and III 
A) II and III 
B) I and II 
C) I, II, and III 
D) I and III

Question 18

What is the recommended initial dose of inhaled NO in neonates with respiratory distress syndrome?

Accepted Answer

A) 5 ppm 
B) 10 ppm 
C) 20 ppm 
D) 30 ppm 
A) 5 ppm 
B) 10 ppm 
C) 20 ppm 
D) 30 ppm

Question 19

Where would you measure the FIO2 in an NO delivery system used with a mechanical ventilator?

Accepted Answer

A) proximal to the NO titration site 
B) distal to the NO titration site 
C) directly at the NO titration site 
D) proximal to the O2 blending system 
A) proximal to the NO titration site 
B) distal to the NO titration site 
C) directly at the NO titration site 
D) proximal to the O2 blending system

Question 20

A 45-year-old patient with congestive heart failure is receiving O2 through a 35% air-entrainment mask. With an O2 input of 6 L/min, what is the total output gas flow?

Accepted Answer

A) 16 L/min 
B) 24 L/min 
C) 28 L/min 
D) 34 L/min 
A) 16 L/min 
B) 24 L/min 
C) 28 L/min 
D) 34 L/min

Exam 38: Medical Gas Therapy

You set up an Oxy-Hood with an FIO2 of 0.5 for a newborn infant. What is the maximum time that should pass before assessing this patient's PaO2 or SaO2?

You design an air-entrainment system that mixes air with O2 at a fixed ratio of 1:7 (1 L air to 7 L O2). About what O2 will this device provide?

A physician places a patient in respiratory failure on 100% O2. To avoid the hazards of O2 toxicity, you would recommend that every effort be made to reduce this FIO2 to less than 50% within what time frame?

Retinopathy of prematurity (ROP) is a potentially serious management problem mainly in the care of whom?

What is the minimum flow setting for a simple mask applied to an adult?

Benefits of properly applied O2 therapy in patients with chronic hypoxemia include all of the following except:

What is the level of SpO2 typically associated with discontinuation of O2 therapy?

To minimize the risk of retinopathy of prematurity (ROP), the American Academy of Pediatrics recommends keeping the PaO2 below what level?

A patient receiving 3 L/min O2 through a nasal cannula has a measured SpO2 of 93% and no clinical signs of hypoxemia. At this point, what should you recommend?

In which of the following clinical situations would you recommend hyperbaric oxygen (HBO) therapy, if available? I.carbon monoxide poisoning II.respiratory or cardiac arrest III.severe trauma IV.cyanide poisoning

Which of the following factors will decrease the FIO2 delivered by a low-flow O2 system? I.short inspiratory time II.fast rate of breathing III.lower O2 input IV.large minute ventilation

Retinopathy of prematurity may result in which of the following?

A patient breathing 100% O2 for 24 hours or longer would most likely exhibit which of the following? I.decreased DLCO II.decreased CL III.increased PAO2 - PaO2 IV.decreased VC

Which of the following is FALSE about NO2?

You start a chronic obstructive pulmonary disease (COPD) patient on a nasal O2 cannula at 2 L/min. What is the maximum time that should pass before assessing this patient's PaO2 or SaO2?

Which of the following factors should be used in properly selecting an O2 delivery device? I.knowledge of general performance of the device II.physician's preference III.individual capabilities of the equipment

What is the recommended initial dose of inhaled NO in neonates with respiratory distress syndrome?

Where would you measure the FIO2 in an NO delivery system used with a mechanical ventilator?

A 45-year-old patient with congestive heart failure is receiving O2 through a 35% air-entrainment mask. With an O2 input of 6 L/min, what is the total output gas flow?

History of Respiratory Care

Quality and Evidence-Based Respiratory Care

Patient Safety, Communication, and Record Keeping

Principles of Infection Control

Ethical and Legal Implications of Practice

Physical Principles of Respiratory Care

Computer Applications in Respiratory Care

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

Interpretation of Clinical Laboratory Data

Interpreting the Electrocardiogram

Analysis and Monitoring of Gas Exchange

Pulmonary Function Testing

A Review of Thoracic Imaging

Nutrition Assessment

Pulmonary Infections

Obstructive Lung Disease: Copd, Asthma, and Related Diseases

Interstitial Lung Disease

Pleural Diseases

Pulmonary Vascular Disease

Acute Lung Injury, Pulmonary Edema, and Multiple System Organ

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

Lung Expansion Therapy

Bronchial Hygiene Therapy

Respiratory Failure and the Need for Ventilatory Support

Mechanical Ventilators

Physiology of Ventilatory Support

Initiating and Adjusting Ventilatory Support

Noninvasive Positive Pressure Ventilation

Monitoring and Management of 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

You set up an Oxy-Hood with an FIO₂ of 0.5 for a newborn infant. What is the maximum time that should pass before assessing this patient's PaO₂ or SaO₂?

You design an air-entrainment system that mixes air with O₂ at a fixed ratio of 1:7 (1 L air to 7 L O₂). About what O₂ will this device provide?

A physician places a patient in respiratory failure on 100% O₂. To avoid the hazards of O₂ toxicity, you would recommend that every effort be made to reduce this FIO₂to less than 50% within what time frame?

Benefits of properly applied O₂ therapy in patients with chronic hypoxemia include all of the following except:

What is the level of SpO₂ typically associated with discontinuation of O₂ therapy?

To minimize the risk of retinopathy of prematurity (ROP), the American Academy of Pediatrics recommends keeping the PaO₂ below what level?

A patient receiving 3 L/min O₂ through a nasal cannula has a measured SpO₂ of 93% and no clinical signs of hypoxemia. At this point, what should you recommend?

Which of the following factors will decrease the FIO₂ delivered by a low-flow O₂ system? I.short inspiratory time II.fast rate of breathing III.lower O₂ input IV.large minute ventilation

A patient breathing 100% O₂ for 24 hours or longer would most likely exhibit which of the following? I.decreased DLCO II.decreased C_L III.increased PAO₂ - PaO₂ IV.decreased VC

Which of the following is FALSE about NO₂?

You start a chronic obstructive pulmonary disease (COPD) patient on a nasal O₂ cannula at 2 L/min. What is the maximum time that should pass before assessing this patient's PaO₂or SaO₂?

Which of the following factors should be used in properly selecting an O₂ delivery device? I.knowledge of general performance of the device II.physician's preference III.individual capabilities of the equipment

Where would you measure the FIO₂ in an NO delivery system used with a mechanical ventilator?

A 45-year-old patient with congestive heart failure is receiving O₂ through a 35% air-entrainment mask. With an O₂ input of 6 L/min, what is the total output gas flow?