Question 1

What liter flow is approximately 32% on a nasal cannula?

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  5 
A)  2 
B)  3 
C)  4 
D)  5

Question 2

What type of oxygen-delivery device does the following image illustrate?

Accepted Answer

A)  Simple mask 
B)  Nonrebreathing mask 
C)  Air-entrainment mask 
D)  Partial rebreathing mask 
A)  Simple mask 
B)  Nonrebreathing mask 
C)  Air-entrainment mask 
D)  Partial rebreathing mask

Question 3

Which of the following O₂ devices is appropriate for patients with chronic obstructive pulmonary disease who are hypoxemic?

Accepted Answer

A)  Simple mask 
B)  Nasal cannula 
C)  Partial rebreathing mask 
D)  Air-entrainment mask 
A)  Simple mask 
B)  Nasal cannula 
C)  Partial rebreathing mask 
D)  Air-entrainment mask

Question 4

Heliox has been used on a limited basis to treat patients with which of the following?

Accepted Answer

A)  Hyperventilation 
B)  Thermal burns 
C)  Airway obstructions 
D)  Upper respiratory infections 
A)  Hyperventilation 
B)  Thermal burns 
C)  Airway obstructions 
D)  Upper respiratory infections

Question 5

The benefits of breathing heliox are related to its lower density in comparison with pure oxygen or air. The lower density does which of the following? 1.Promotes laminar flow
2)Increases the amount of turbulent flow
3)Reduces the amount of turbulent flow
4)Decreases the laminar flow

Accepted Answer

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

Question 6

The oxygen/air ratio for the 35% air-entrainment mask is:

Accepted Answer

A)  1:4.3. 
B)  1:5.3. 
C)  1:6.0. 
D)  1:6.5. 
A)  1:4.3. 
B)  1:5.3. 
C)  1:6.0. 
D)  1:6.5.

Question 7

Which of the following are disadvantages of delivering oxygen by reservoir masks?
1)Rebreathing CO₂
2)The patient cannot eat
3)Increased risk of aspirations
4)Claustrophobia/discomfort

Accepted Answer

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

Question 8

Upon arrival to the emergency department,a patient is found to have an SpO₂ of 75% on a nonrebreathing mask.You notice that the nonrebreathing mask is hooked to a bubble humidifier.The humidifier bottle is whistling and is expanded. What is your next action as the respiratory therapist?

Accepted Answer

A)  Change the bubble humidifier; it's defective. 
B)  Check for kinks in tubing. 
C)  Remove the nonrebreathing mask from the humidifier and run off of O₂. 
D)  Place a Venturi mask on the patient. 
A)  Change the bubble humidifier; it's defective. 
B)  Check for kinks in tubing. 
C)  Remove the nonrebreathing mask from the humidifier and run off of O₂. 
D)  Place a Venturi mask on the patient.

Question 9

If a Venturi mask is set at 28% and the liter flow is set above the set liter flow prescribed on the device,what FɪO₂ is being delivered?

Accepted Answer

A)  28% 
B)  32% 
C)  100% 
D)  80% 
A)  28% 
B)  32% 
C)  100% 
D)  80%

Question 10

For a neonate on an oxygen hood,where is the best placement of an oxygen analyzer to measure the correct FɪO₂?

Accepted Answer

A)  Above the patient's head 
B)  At the nose and mouth 
C)  On the side near either arm 
D)  The rear of the hood 
A)  Above the patient's head 
B)  At the nose and mouth 
C)  On the side near either arm 
D)  The rear of the hood

Question 11

In a pulse-demand oxygen-delivery system,the _____ replaces the flowmeter.

Accepted Answer

A)  Pendant 
B)  Demand valve 
C)  Pressure-relief valve 
D)  Flow valve 
A)  Pendant 
B)  Demand valve 
C)  Pressure-relief valve 
D)  Flow valve

Question 12

A simple mask can deliver what percentage of FɪO₂ at how many liters/minute?

Accepted Answer

A)  0.24 to 0.44 at 1-6 L/min 
B)  0.35 to 0.50 at 5-10 L/min 
C)  0.40 to 0.60 at 10-15 L/min 
D)  0.50 to 0.80 at 5-10 L/min 
A)  0.24 to 0.44 at 1-6 L/min 
B)  0.35 to 0.50 at 5-10 L/min 
C)  0.40 to 0.60 at 10-15 L/min 
D)  0.50 to 0.80 at 5-10 L/min

Question 13

As the barometric pressure increases,there is an increase in the density of the gas being breathed. The increase in gas density in turn causes a(n):

Accepted Answer

A)  Decrease in work of breathing 
B)  Increase in FɪO₂ 
C)  Increase in work of breathing 
D)  Decrease in FɪO₂ 
A)  Decrease in work of breathing 
B)  Increase in FɪO₂ 
C)  Increase in work of breathing 
D)  Decrease in FɪO₂

Question 14

______ law states that if the temperature of a gas remains constant,the volume of a gas is inversely related to its pressure.

Accepted Answer

A)  Henry's 
B)  Boyle's 
C)  Dalton's 
D)  Laplace's 
A)  Henry's 
B)  Boyle's 
C)  Dalton's 
D)  Laplace's

Question 15

According to the American Association for Respiratory Care (AARC)Clinical Practice Guideline (2002 Revision & Update),which of the following are considered precautions or complications of oxygen therapy?
1)A PaO₂ >60 mm Hg in spontaneously breathing patients with chronic PaCO₂ levels
2)With FɪO₂ >0.50 and the risk of oxygen toxicity or absorption atelectasis occurring
3)During laser bronchoscopy and high levels of oxygen
4)Acute myocardial infarction

Accepted Answer

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

Question 16

Partial rebreathing masks deliver what FɪO₂ at what liter flow?

Accepted Answer

A)  0.35 to 0.50 at 4-5 L 
B)  0.40 to 0.60 at 6-8 L 
C)  0.50 to 0.80 at 6-8 L 
D)  0 50 to 1.00 at 12-15 L 
A)  0.35 to 0.50 at 4-5 L 
B)  0.40 to 0.60 at 6-8 L 
C)  0.50 to 0.80 at 6-8 L 
D)  0 50 to 1.00 at 12-15 L

Question 17

Which of the following are advantages of nasal cannula use?
1)They are cost-effective.
2)They deliver precise FɪO₂.
3)The patient can eat,speak,and drink with the cannula in place.
4)Pressure necrosis will not occur.

Accepted Answer

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

Question 18

The total flow for a 50% air-entrainment mask running at 8 L/min is _____ L/min.

Accepted Answer

A)  18 
B)  22 
C)  25 
D)  30 
A)  18 
B)  22 
C)  25 
D)  30

Question 19

Intermittent air-breathing is used in hyperbaric chambers to prevent which of the following?

Accepted Answer

A)  Hyperventilation 
B)  Oxygen toxicity 
C)  Hypoventilation 
D)  Hypertension 
A)  Hyperventilation 
B)  Oxygen toxicity 
C)  Hypoventilation 
D)  Hypertension

Question 20

Which of the following O₂ devices has 2 one-way valves and the second valve is at the exhalation ports,which prevents room air from entering the mask during inhalation?

Accepted Answer

A)  Nonrebreathing mask 
B)  Partial rebreathing mask 
C)  Aerosol tracheostomy collar mask 
D)  Simple mask 
A)  Nonrebreathing mask 
B)  Partial rebreathing mask 
C)  Aerosol tracheostomy collar mask 
D)  Simple mask

What liter flow is approximately 32% on a nasal cannula?

What type of oxygen-delivery device does the following image illustrate?

Which of the following O₂ devices is appropriate for patients with chronic obstructive pulmonary disease who are hypoxemic?

Heliox has been used on a limited basis to treat patients with which of the following?

The benefits of breathing heliox are related to its lower density in comparison with pure oxygen or air. The lower density does which of the following? 1.Promotes laminar flow 2)Increases the amount of turbulent flow 3)Reduces the amount of turbulent flow 4)Decreases the laminar flow

The oxygen/air ratio for the 35% air-entrainment mask is:

Which of the following are disadvantages of delivering oxygen by reservoir masks? 1)Rebreathing CO₂ 2)The patient cannot eat 3)Increased risk of aspirations 4)Claustrophobia/discomfort

Upon arrival to the emergency department,a patient is found to have an SpO₂ of 75% on a nonrebreathing mask.You notice that the nonrebreathing mask is hooked to a bubble humidifier.The humidifier bottle is whistling and is expanded. What is your next action as the respiratory therapist?

If a Venturi mask is set at 28% and the liter flow is set above the set liter flow prescribed on the device,what FɪO₂ is being delivered?

For a neonate on an oxygen hood,where is the best placement of an oxygen analyzer to measure the correct FɪO₂?

In a pulse-demand oxygen-delivery system,the _____ replaces the flowmeter.

A simple mask can deliver what percentage of FɪO₂ at how many liters/minute?

As the barometric pressure increases,there is an increase in the density of the gas being breathed. The increase in gas density in turn causes a(n):

______ law states that if the temperature of a gas remains constant,the volume of a gas is inversely related to its pressure.

Partial rebreathing masks deliver what FɪO₂ at what liter flow?

Which of the following are advantages of nasal cannula use? 1)They are cost-effective. 2)They deliver precise FɪO₂. 3)The patient can eat,speak,and drink with the cannula in place. 4)Pressure necrosis will not occur.

The total flow for a 50% air-entrainment mask running at 8 L/min is _____ L/min.

Intermittent air-breathing is used in hyperbaric chambers to prevent which of the following?

Which of the following O₂ devices has 2 one-way valves and the second valve is at the exhalation ports,which prevents room air from entering the mask during inhalation?

Basic Physics for the Respiratory Therapist

Principles of Infection Control

Manufacture, Storage, and Transport of Medical Gases

Airway Management Devices and Advanced Cardiac Life Support

Humidity and Aerosol Therapy

Lung Expansion Therapy Devices

Assessment of Pulmonary Function

Assessment of Cardiovascular Function

Blood Gas Monitoring

Sleep Diagnostics

Introduction to Ventilators

Mechanical Ventilators: General-Use Devices

Infant and Pediatric Devices

Transport, Home Care, and Noninvasive Ventilatory Devices

Filters

Exam 4: Administering Medical Gases: Regulators, Flowmeters, and

What liter flow is approximately 32% on a nasal cannula?

What type of oxygen-delivery device does the following image illustrate?

Which of the following O₂ devices is appropriate for patients with chronic obstructive pulmonary disease who are hypoxemic?

Heliox has been used on a limited basis to treat patients with which of the following?

The benefits of breathing heliox are related to its lower density in comparison with pure oxygen or air. The lower density does which of the following? 1.Promotes laminar flow 2)Increases the amount of turbulent flow 3)Reduces the amount of turbulent flow 4)Decreases the laminar flow

The oxygen/air ratio for the 35% air-entrainment mask is:

Which of the following are disadvantages of delivering oxygen by reservoir masks? 1)Rebreathing CO₂ 2)The patient cannot eat 3)Increased risk of aspirations 4)Claustrophobia/discomfort

Upon arrival to the emergency department,a patient is found to have an SpO₂ of 75% on a nonrebreathing mask.You notice that the nonrebreathing mask is hooked to a bubble humidifier.The humidifier bottle is whistling and is expanded. What is your next action as the respiratory therapist?

If a Venturi mask is set at 28% and the liter flow is set above the set liter flow prescribed on the device,what FɪO₂ is being delivered?

For a neonate on an oxygen hood,where is the best placement of an oxygen analyzer to measure the correct FɪO₂?

In a pulse-demand oxygen-delivery system,the _____ replaces the flowmeter.

A simple mask can deliver what percentage of FɪO₂ at how many liters/minute?

As the barometric pressure increases,there is an increase in the density of the gas being breathed. The increase in gas density in turn causes a(n):

______ law states that if the temperature of a gas remains constant,the volume of a gas is inversely related to its pressure.

Partial rebreathing masks deliver what FɪO₂ at what liter flow?

Which of the following are advantages of nasal cannula use? 1)They are cost-effective. 2)They deliver precise FɪO₂. 3)The patient can eat,speak,and drink with the cannula in place. 4)Pressure necrosis will not occur.

The total flow for a 50% air-entrainment mask running at 8 L/min is _____ L/min.

Intermittent air-breathing is used in hyperbaric chambers to prevent which of the following?

Which of the following O₂ devices has 2 one-way valves and the second valve is at the exhalation ports,which prevents room air from entering the mask during inhalation?

Basic Physics for the Respiratory Therapist

Principles of Infection Control

Manufacture, Storage, and Transport of Medical Gases

Airway Management Devices and Advanced Cardiac Life Support

Humidity and Aerosol Therapy

Lung Expansion Therapy Devices

Assessment of Pulmonary Function

Assessment of Cardiovascular Function

Blood Gas Monitoring

Sleep Diagnostics

Introduction to Ventilators

Mechanical Ventilators: General-Use Devices

Infant and Pediatric Devices

Transport, Home Care, and Noninvasive Ventilatory Devices

Filters