Question 1

What is the inspiratory time for a frequency of 20 breaths/min and an inspiratory time-to-expiratory time ratio of 1:3?

Accepted Answer

A)  0.25 second 
B)  0.75 second 
C)  1.00 second 
D)  1.33 seconds 
A)  0.25 second 
B)  0.75 second 
C)  1.00 second 
D)  1.33 seconds

Question 2

The flow,volume,and pressure waveforms characteristic of volume breaths with a descending ramp flow pattern are shown in which column of the figure?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
A)  A 
B)  B 
C)  C 
D)  D

Question 3

Which of the following is the flow waveform created by a linear-drive piston?

Accepted Answer

A)  Sinusoidal 
B)  Rectangular 
C)  Ascending ramp 
D)  Descending ramp 
A)  Sinusoidal 
B)  Rectangular 
C)  Ascending ramp 
D)  Descending ramp

Question 4

Which of the following is a mode of ventilation that is time triggered or patient triggered as well as pressure limited and time cycled?

Accepted Answer

A)  Pressure-support ventilation 
B)  Pressure-controlled intermittent mandatory ventilation 
C)  Pressure-controlled continuous mandatory ventilation 
D)  Dual control continuous mandatory ventilation 
A)  Pressure-support ventilation 
B)  Pressure-controlled intermittent mandatory ventilation 
C)  Pressure-controlled continuous mandatory ventilation 
D)  Dual control continuous mandatory ventilation

Question 5

Worsening lung compliance during pressure-controlled ventilation would cause which of the following?

Accepted Answer

A)  A decrease in peak pressure 
B)  An increase in peak pressure 
C)  A decrease in volume delivery 
D)  An increase in peak flow rate 
A)  A decrease in peak pressure 
B)  An increase in peak pressure 
C)  A decrease in volume delivery 
D)  An increase in peak flow rate

Question 6

The Downs continuous positive airway pressure system uses which of the following to establish positive airway pressure?

Accepted Answer

A)  Weighted ball 
B)  Magnetic valve 
C)  Spring-loaded valve 
D)  Opposing gas flow 
A)  Weighted ball 
B)  Magnetic valve 
C)  Spring-loaded valve 
D)  Opposing gas flow

Question 7

What is the inspiratory time-to-expiratory time ratio given the following data: frequency of 12 breaths/min; inspiratory time of 0.90 second?

Accepted Answer

A)  1:0.22 
B)  1:2 
C)  1:4.6 
D)  1:6.4 
A)  1:0.22 
B)  1:2 
C)  1:4.6 
D)  1:6.4

Question 8

Which two of the following basic physical principles are used in the power transmission design of fluidic ventilators?
1)Venturi
2)Bernoulli
3)Beam deflection
4)Wall attachment

Accepted Answer

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

Question 9

Obstructive sleep apnea is most commonly treated with which of the following?

Accepted Answer

A)  Pressure-support ventilation 
B)  Pressure-controlled ventilation 
C)  Continuous mandatory ventilation 
D)  Bilevel positive airway pressure 
A)  Pressure-support ventilation 
B)  Pressure-controlled ventilation 
C)  Continuous mandatory ventilation 
D)  Bilevel positive airway pressure

Question 10

Which of the following ventilator modes is based on the equation of motion and delivers pressure,flow,and volume dependent on the patient's inspiratory effort?

Accepted Answer

A)  Proportional assist ventilation 
B)  Mandatory minute ventilation 
C)  Airway pressure-release ventilation 
D)  Pressure-controlled continuous mandatory ventilation 
A)  Proportional assist ventilation 
B)  Mandatory minute ventilation 
C)  Airway pressure-release ventilation 
D)  Pressure-controlled continuous mandatory ventilation

Question 11

What is the volume that will reach the patient when the volume setting is 700 mL,the tubing compliance is 2 mL/cm H₂O,and the measured peak inspiratory pressure is 35 cm H₂O?

Accepted Answer

A)  770 mL 
B)  698 mL 
C)  665 mL 
D)  630 mL 
A)  770 mL 
B)  698 mL 
C)  665 mL 
D)  630 mL

Question 12

Improving lung compliance during pressure-controlled ventilation would cause which of the following?

Accepted Answer

A)  A decrease in peak pressure 
B)  An increase in peak pressure 
C)  An increase in volume delivery 
D)  A decrease in volume delivery 
A)  A decrease in peak pressure 
B)  An increase in peak pressure 
C)  An increase in volume delivery 
D)  A decrease in volume delivery

Question 13

When the maximum safety pressure setting on an adult ventilator is reached,which of the following occurs?

Accepted Answer

A)  Inspiration is triggered. 
B)  Flow begins to decrease. 
C)  Inspiration ends prematurely. 
D)  Pressure is held until the target volume is delivered. 
A)  Inspiration is triggered. 
B)  Flow begins to decrease. 
C)  Inspiration ends prematurely. 
D)  Pressure is held until the target volume is delivered.

Question 14

Increased transairway pressure is associated with which two of the following changes?
1)Increased airway resistance
2)Decreased airway resistance
3)Increased static compliance
4)Decreased static compliance

Accepted Answer

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

Question 15

The erratic pattern of eddies and streams caused by the turbulent flow of high-velocity gases moving through small airways and their bifurcations is caused by which of the following?

Accepted Answer

A)  Pendelluft 
B)  Gas streaming 
C)  Taylor dispersion 
D)  Molecular diffusion 
A)  Pendelluft 
B)  Gas streaming 
C)  Taylor dispersion 
D)  Molecular diffusion

Question 16

An iron lung is which type of ventilator?

Accepted Answer

A)  Fluidic 
B)  Positive-pressure 
C)  Negative-pressure 
D)  Positive/negative pressure 
A)  Fluidic 
B)  Positive-pressure 
C)  Negative-pressure 
D)  Positive/negative pressure

Question 17

Worsening lung compliance during volume-controlled ventilation would cause which of the following?

Accepted Answer

A)  A decrease in peak pressure 
B)  An increase in peak pressure 
C)  A decrease in volume delivery 
D)  An increase in peak flow rate 
A)  A decrease in peak pressure 
B)  An increase in peak pressure 
C)  A decrease in volume delivery 
D)  An increase in peak flow rate

Question 18

Which of the following variables begins a mandatory breath?

Accepted Answer

A)  Flow 
B)  Time 
C)  Volume 
D)  Pressure 
A)  Flow 
B)  Time 
C)  Volume 
D)  Pressure

Question 19

The pressure support level is automatically adjusted by the ventilator to maintain appropriate breathing frequency,tidal volume,and end-tidal carbon dioxide,depending on the patient's pathologic condition.This mode description pertains to which of the following ventilator control types?

Accepted Answer

A)  Adaptive 
B)  Set-point 
C)  Knowledge-based 
D)  Neurally adjusted ventilatory assist 
A)  Adaptive 
B)  Set-point 
C)  Knowledge-based 
D)  Neurally adjusted ventilatory assist

Question 20

What is the transairway pressure from the information found in the figure?

Accepted Answer

A)  10 cm H₂O 
B)  15 cm H₂O 
C)  25 cm H₂O 
D)  35 cm H₂O 
A)  10 cm H₂O 
B)  15 cm H₂O 
C)  25 cm H₂O 
D)  35 cm H₂O

What is the inspiratory time for a frequency of 20 breaths/min and an inspiratory time-to-expiratory time ratio of 1:3?

The flow,volume,and pressure waveforms characteristic of volume breaths with a descending ramp flow pattern are shown in which column of the figure?

Which of the following is the flow waveform created by a linear-drive piston?

Which of the following is a mode of ventilation that is time triggered or patient triggered as well as pressure limited and time cycled?

Worsening lung compliance during pressure-controlled ventilation would cause which of the following?

The Downs continuous positive airway pressure system uses which of the following to establish positive airway pressure?

What is the inspiratory time-to-expiratory time ratio given the following data: frequency of 12 breaths/min; inspiratory time of 0.90 second?

Which two of the following basic physical principles are used in the power transmission design of fluidic ventilators? 1)Venturi 2)Bernoulli 3)Beam deflection 4)Wall attachment

Obstructive sleep apnea is most commonly treated with which of the following?

Which of the following ventilator modes is based on the equation of motion and delivers pressure,flow,and volume dependent on the patient's inspiratory effort?

What is the volume that will reach the patient when the volume setting is 700 mL,the tubing compliance is 2 mL/cm H₂O,and the measured peak inspiratory pressure is 35 cm H₂O?

Improving lung compliance during pressure-controlled ventilation would cause which of the following?

When the maximum safety pressure setting on an adult ventilator is reached,which of the following occurs?

Increased transairway pressure is associated with which two of the following changes? 1)Increased airway resistance 2)Decreased airway resistance 3)Increased static compliance 4)Decreased static compliance

The erratic pattern of eddies and streams caused by the turbulent flow of high-velocity gases moving through small airways and their bifurcations is caused by which of the following?

An iron lung is which type of ventilator?

Worsening lung compliance during volume-controlled ventilation would cause which of the following?

Which of the following variables begins a mandatory breath?

The pressure support level is automatically adjusted by the ventilator to maintain appropriate breathing frequency,tidal volume,and end-tidal carbon dioxide,depending on the patient's pathologic condition.This mode description pertains to which of the following ventilator control types?

What is the transairway pressure from the information found in the figure?

Basic Physics for the Respiratory Therapist

Principles of Infection Control

Manufacture, Storage, and Transport of Medical Gases

Administering Medical Gases: Regulators, Flowmeters, and

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

Mechanical Ventilators: General-Use Devices

Infant and Pediatric Devices

Transport, Home Care, and Noninvasive Ventilatory Devices

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Exam 12: Introduction to Ventilators

What is the inspiratory time for a frequency of 20 breaths/min and an inspiratory time-to-expiratory time ratio of 1:3?

The flow,volume,and pressure waveforms characteristic of volume breaths with a descending ramp flow pattern are shown in which column of the figure?

Which of the following is the flow waveform created by a linear-drive piston?

Which of the following is a mode of ventilation that is time triggered or patient triggered as well as pressure limited and time cycled?

Worsening lung compliance during pressure-controlled ventilation would cause which of the following?

The Downs continuous positive airway pressure system uses which of the following to establish positive airway pressure?

What is the inspiratory time-to-expiratory time ratio given the following data: frequency of 12 breaths/min; inspiratory time of 0.90 second?

Which two of the following basic physical principles are used in the power transmission design of fluidic ventilators? 1)Venturi 2)Bernoulli 3)Beam deflection 4)Wall attachment

Obstructive sleep apnea is most commonly treated with which of the following?

Which of the following ventilator modes is based on the equation of motion and delivers pressure,flow,and volume dependent on the patient's inspiratory effort?

What is the volume that will reach the patient when the volume setting is 700 mL,the tubing compliance is 2 mL/cm H₂O,and the measured peak inspiratory pressure is 35 cm H₂O?

Improving lung compliance during pressure-controlled ventilation would cause which of the following?

When the maximum safety pressure setting on an adult ventilator is reached,which of the following occurs?

Increased transairway pressure is associated with which two of the following changes? 1)Increased airway resistance 2)Decreased airway resistance 3)Increased static compliance 4)Decreased static compliance

The erratic pattern of eddies and streams caused by the turbulent flow of high-velocity gases moving through small airways and their bifurcations is caused by which of the following?

An iron lung is which type of ventilator?

Worsening lung compliance during volume-controlled ventilation would cause which of the following?

Which of the following variables begins a mandatory breath?

The pressure support level is automatically adjusted by the ventilator to maintain appropriate breathing frequency,tidal volume,and end-tidal carbon dioxide,depending on the patient's pathologic condition.This mode description pertains to which of the following ventilator control types?

What is the transairway pressure from the information found in the figure?

Basic Physics for the Respiratory Therapist

Principles of Infection Control

Manufacture, Storage, and Transport of Medical Gases

Administering Medical Gases: Regulators, Flowmeters, and

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

Mechanical Ventilators: General-Use Devices

Infant and Pediatric Devices

Transport, Home Care, and Noninvasive Ventilatory Devices

Filters