Question 1

To produce clinically useful aerosol particles through a small-volume nebulizer,the gas flow rate should be set at ___ L/min to ___ L/min.

Accepted Answer

A)  12; 15 
B)  10; 12 
C)  6; 10 
D)  3; 6 
A)  12; 15 
B)  10; 12 
C)  6; 10 
D)  3; 6

Question 2

A patient who requires mechanical ventilation has a core body temperature of 32ᵒ C; humidity is being provided with a heat moisture exchanger.Which of the following statements is accurate?

Accepted Answer

A)  The relative humidity at BTPS will be increased. 
B)  Higher inspiratory flow rates will be required. 
C)  Humidification will be inadequate due to the decreased body temperature. 
D)  The minute volume will be increased due to the hypothermia. 
A)  The relative humidity at BTPS will be increased. 
B)  Higher inspiratory flow rates will be required. 
C)  Humidification will be inadequate due to the decreased body temperature. 
D)  The minute volume will be increased due to the hypothermia.

Question 3

Indications for the use of warm,humidified gas are which of the following?
1)Patients with hypothermia
2)Patients with croup
3)Patients with bronchospasm
4)Patients with postextubation edema

Accepted Answer

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

Question 4

Which of the following are true about the use of a metered dose inhaler?
1)Inertial impaction can be reduced if the patient holds the inhaler in the mouth.
2)Smaller particles will be produced in a cold environment.
3)Larger particles will be produced in a cold environment.
4)The optimum temperature for an inhaler canister is 37° c.
5)The inhaler needs to be shaken before actuation.

Accepted Answer

A)  1,3,and 4 
B)  2 and 4 
C)  2 and 5 
D)  3,4,and 5 
A)  1,3,and 4 
B)  2 and 4 
C)  2 and 5 
D)  3,4,and 5

Question 5

Which of the following statements is true about the use of a pressure metered dose inhaler with a valved holding chamber?

Accepted Answer

A)  This chamber cannot be used with infants. 
B)  Infants can take up to 10 breaths. 
C)  Shake the pressure metered dose inhaler and chamber separately. 
D)  This device is only for adults and children over the age of 12. 
A)  This chamber cannot be used with infants. 
B)  Infants can take up to 10 breaths. 
C)  Shake the pressure metered dose inhaler and chamber separately. 
D)  This device is only for adults and children over the age of 12.

Question 6

Which of the following is not a complication from bland aerosol therapy?

Accepted Answer

A)  Infection 
B)  Overhydration 
C)  Bronchospasm 
D)  Upper airway edema 
A)  Infection 
B)  Overhydration 
C)  Bronchospasm 
D)  Upper airway edema

Question 7

Which of the following presents the greatest risk for an infant being treated with a heated jet nebulizer?

Accepted Answer

A)  Infection 
B)  Bronchospasm 
C)  Overhydration 
D)  Tachycardia 
A)  Infection 
B)  Bronchospasm 
C)  Overhydration 
D)  Tachycardia

Question 8

Which of the following is the optimal technique for use of a metered dose inhaler?
1)Actuating the inhaler with the mouthpiece 4 cm from the patient's opened mouth
2)Placing the inhaler in the mouth and closing the lips tightly
3)Holding breath for 5 to 10 seconds after inhalation
4)Not waiting between actuations
5)Inhaling the aerosol quickly

Accepted Answer

A)  1 and 3 
B)  1,3,and 4 
C)  2,3,and 5 
D)  2,4,and 5 
A)  1 and 3 
B)  1,3,and 4 
C)  2,3,and 5 
D)  2,4,and 5

Question 9

It is appropriate to suggest which of the following to provide humidification for an intubated patient with a cuffed endotracheal tube,no secretions,and a tidal volume of 500 mL?

Accepted Answer

A)  A heat and moisture exchanger 
B)  Heated aerosol or humidifier 
C)  Heated aerosol with humidifier 
D)  Systemic hydration 
A)  A heat and moisture exchanger 
B)  Heated aerosol or humidifier 
C)  Heated aerosol with humidifier 
D)  Systemic hydration

Question 10

A metered dose inhaler should be held away from the mouth during actuation to:

Accepted Answer

A)  decrease the effect of inertial impaction on the particles. 
B)  decrease the effect of gravity on the particles. 
C)  ensure deposition in the oropharynx. 
D)  prevent cross-contamination. 
A)  decrease the effect of inertial impaction on the particles. 
B)  decrease the effect of gravity on the particles. 
C)  ensure deposition in the oropharynx. 
D)  prevent cross-contamination.

Question 11

Which of the following is true concerning water vapor?

Accepted Answer

A)  It is a true gas. 
B)  It has a constant pressure. 
C)  It exerts a partial pressure. 
D)  It exists above its critical temperature. 
A)  It is a true gas. 
B)  It has a constant pressure. 
C)  It exerts a partial pressure. 
D)  It exists above its critical temperature.

Question 12

Which of the following offers the most accurate and reliable method for measuring the temperature and humidity level within a ventilator circuit?

Accepted Answer

A)  Humidity control of hot-wire humidification system 
B)  Oxygen analyzer 
C)  Hygrometer-thermometer 
D)  Not able to measure humidity level 
A)  Humidity control of hot-wire humidification system 
B)  Oxygen analyzer 
C)  Hygrometer-thermometer 
D)  Not able to measure humidity level

Question 13

A respiratory therapist needs to deliver a bronchodilator with a small-volume nebulizer.To ensure that 70% of the medication is available for nebulization,_____ mL of fluid should fill the nebulizer.

Accepted Answer

A)  3 
B)  5 
C)  3.5 
D)  4 
A)  3 
B)  5 
C)  3.5 
D)  4

Question 14

When the temperature is 37° C and the relative humidity is 35%,the absolute humidity is _____ mg H₂O/L.

Accepted Answer

A)  11.9 
B)  15.4 
C)  16.5 
D)  79.5 
A)  11.9 
B)  15.4 
C)  16.5 
D)  79.5

Question 15

Which of the following statements is true concerning the use of dry-powder inhalers?

Accepted Answer

A)  Propellants are used to help deliver the drug. 
B)  The carrier substance is usually lactose or glucose. 
C)  Laminar flow is necessary to create the aerosol. 
D)  Patients must breathe slowly and deeply during administration. 
A)  Propellants are used to help deliver the drug. 
B)  The carrier substance is usually lactose or glucose. 
C)  Laminar flow is necessary to create the aerosol. 
D)  Patients must breathe slowly and deeply during administration.

Question 16

Which of the following statements regarding large-volume jet nebulizers is true?

Accepted Answer

A)  Gas is brought down the siphon tube into the liquid. 
B)  Lateral pressure increases around the air-entrainment ports. 
C)  Baffling removes the larger particles from the generated aerosol. 
D)  Inspiratory flow can be increased by closing the air-entrainment ports. 
A)  Gas is brought down the siphon tube into the liquid. 
B)  Lateral pressure increases around the air-entrainment ports. 
C)  Baffling removes the larger particles from the generated aerosol. 
D)  Inspiratory flow can be increased by closing the air-entrainment ports.

Question 17

The isothermic saturation boundary is located just below the:

Accepted Answer

A)  carina. 
B)  nasopharynx. 
C)  lobar bronchi. 
D)  mainstem bronchi. 
A)  carina. 
B)  nasopharynx. 
C)  lobar bronchi. 
D)  mainstem bronchi.

Question 18

An ultrasonic nebulizer is being used to deliver a hypotonic solution.The patient suddenly reports shortness of breath.The respiratory therapist auscultates,which reveals wheezing over both lung fields.Which of the following actions should be taken first?
1)Observe the patient.
2)Give the patient oxygen.
3)Add a bronchodilator to the treatment.
4)Immediately stop the treatment.

Accepted Answer

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

Question 19

You have to set up a continuous heated aerosol to a patient with a tracheostomy.Which of the following pieces of equipment will be needed?
1)Aerosol mask
2)Tracheostomy collar
3)Thermometer
4)Drain bag
5)Oxygen tubing
6)Corrugated tubing
7)Large-volume nebulizer
8)Ultrasonic nebulizer
9)Heating unit
10)Bubble humidifier

Accepted Answer

A)  1,5,and 10 
B)  2,4,6,and 8 
C)  1,4,6,7,and 9 
D)  2,3,4,6,7,and 9 
A)  1,5,and 10 
B)  2,4,6,and 8 
C)  1,4,6,7,and 9 
D)  2,3,4,6,7,and 9

Question 20

If the actual water vapor pressure is 40 mm Hg and the capacity is 55 mm Hg,the relative humidity is:

Accepted Answer

A)  88%. 
B)  85%. 
C)  80%. 
D)  35%. 
A)  88%. 
B)  85%. 
C)  80%. 
D)  35%.

To produce clinically useful aerosol particles through a small-volume nebulizer,the gas flow rate should be set at _ L/min to _ L/min.

A patient who requires mechanical ventilation has a core body temperature of 32ᵒ C; humidity is being provided with a heat moisture exchanger.Which of the following statements is accurate?

Indications for the use of warm,humidified gas are which of the following? 1)Patients with hypothermia 2)Patients with croup 3)Patients with bronchospasm 4)Patients with postextubation edema

Which of the following statements is true about the use of a pressure metered dose inhaler with a valved holding chamber?

Which of the following is not a complication from bland aerosol therapy?

Which of the following presents the greatest risk for an infant being treated with a heated jet nebulizer?

It is appropriate to suggest which of the following to provide humidification for an intubated patient with a cuffed endotracheal tube,no secretions,and a tidal volume of 500 mL?

A metered dose inhaler should be held away from the mouth during actuation to:

Which of the following is true concerning water vapor?

Which of the following offers the most accurate and reliable method for measuring the temperature and humidity level within a ventilator circuit?

A respiratory therapist needs to deliver a bronchodilator with a small-volume nebulizer.To ensure that 70% of the medication is available for nebulization,_____ mL of fluid should fill the nebulizer.

When the temperature is 37° C and the relative humidity is 35%,the absolute humidity is _____ mg H₂O/L.

Which of the following statements is true concerning the use of dry-powder inhalers?

Which of the following statements regarding large-volume jet nebulizers is true?

The isothermic saturation boundary is located just below the:

If the actual water vapor pressure is 40 mm Hg and the capacity is 55 mm Hg,the relative humidity is:

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

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 6: Humidity and Aerosol Therapy

To produce clinically useful aerosol particles through a small-volume nebulizer,the gas flow rate should be set at ___ L/min to ___ L/min.

A patient who requires mechanical ventilation has a core body temperature of 32ᵒ C; humidity is being provided with a heat moisture exchanger.Which of the following statements is accurate?

Indications for the use of warm,humidified gas are which of the following? 1)Patients with hypothermia 2)Patients with croup 3)Patients with bronchospasm 4)Patients with postextubation edema

Which of the following statements is true about the use of a pressure metered dose inhaler with a valved holding chamber?

Which of the following is not a complication from bland aerosol therapy?

Which of the following presents the greatest risk for an infant being treated with a heated jet nebulizer?

It is appropriate to suggest which of the following to provide humidification for an intubated patient with a cuffed endotracheal tube,no secretions,and a tidal volume of 500 mL?

A metered dose inhaler should be held away from the mouth during actuation to:

Which of the following is true concerning water vapor?

Which of the following offers the most accurate and reliable method for measuring the temperature and humidity level within a ventilator circuit?

A respiratory therapist needs to deliver a bronchodilator with a small-volume nebulizer.To ensure that 70% of the medication is available for nebulization,_____ mL of fluid should fill the nebulizer.

When the temperature is 37° C and the relative humidity is 35%,the absolute humidity is _____ mg H₂O/L.

Which of the following statements is true concerning the use of dry-powder inhalers?

Which of the following statements regarding large-volume jet nebulizers is true?

The isothermic saturation boundary is located just below the:

If the actual water vapor pressure is 40 mm Hg and the capacity is 55 mm Hg,the relative humidity is:

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

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

To produce clinically useful aerosol particles through a small-volume nebulizer,the gas flow rate should be set at _ L/min to _ L/min.