Question 1

What is the purpose of a baffle in a large volume nebulizer?

Accepted Answer

A)  Entrains air into the nebulizer to achieve various FIO₂. 
B)  Serves to stabilize particle size. 
C)  Regulates total gas flow to ensure a high-flow device. 
D)  It controls the output of the aerosol. 
A)  Entrains air into the nebulizer to achieve various FIO₂. 
B)  Serves to stabilize particle size. 
C)  Regulates total gas flow to ensure a high-flow device. 
D)  It controls the output of the aerosol. B

Question 2

A patient with a tracheostomy is receiving oxygen via T-piece.The physician orders 70% oxygen to be delivered by heated aerosol.The patient's inspiratory flowrate is 35 LPM.How should this oxygen therapy be set up on the patient?

Accepted Answer

An aerosol running at a 70% oxygen setting would deliver on 24 LPM of total flow at 15 LPM.1:0.6 entrainment ratio @ 70% (1.6 X 15 LPM = 24 LPM).Since this flow does not meet or exceed the patient's inspiratory flowrate,the device would not be a high flow device running at 15 LPM and would therefore deliver a decreased FIO₂.Two aerosol units would need to be set up in tandem to obtain a flowrate of at least 35 LPM.

Question 3

When monitoring the effectiveness of bronchodilator administration,which of the following pulmonary function tests would indicate the airway responsiveness the best?

Accepted Answer

A)  Residual volume 
B)  Functional residual capacity 
C)  Tidal volume 
D)  Peak flow 
A)  Residual volume 
B)  Functional residual capacity 
C)  Tidal volume 
D)  Peak flow D

Question 4

When utilizing a Brigg's adaptor to connect the aerosol unit to a tracheostomy tube,a 6 inch piece of wide-bore tubing should be attached to the adaptor opposite the aerosol tubing coming from the nebulizer.What is the purpose of this tubing?

Accepted Answer

A)  To maintain a constant FIO₂ 
B)  To collect expectorated secretions from the patient 
C)  To act as a reservoir for the couplant 
D)  To decrease the risk of contamination from aerosolized droplets 
A)  To maintain a constant FIO₂ 
B)  To collect expectorated secretions from the patient 
C)  To act as a reservoir for the couplant 
D)  To decrease the risk of contamination from aerosolized droplets

Question 5

What controls the particle size generated by an ultrasonic nebulizer?

Accepted Answer

A)  Amplitude 
B)  Frequency 
C)  Piezoelectric crystal 
D)  Couplant 
A)  Amplitude 
B)  Frequency 
C)  Piezoelectric crystal 
D)  Couplant

Question 6

Which of the following is NOT part of the preparation of a bubble humidifier for use on a patient?

Accepted Answer

A)  Filling the reservoir with sterile, distilled water and testing to make sure there is no bacterial growth. 
B)  Testing can be accomplished by observing for bubbling and checking for flow at the outlet. 
C)  The outlet should also be occluded to test the safety popoff for function. 
D)  If the device is a prefilled disposable unit, make sure all seals have been appropriately broken on assembly. 
A)  Filling the reservoir with sterile, distilled water and testing to make sure there is no bacterial growth. 
B)  Testing can be accomplished by observing for bubbling and checking for flow at the outlet. 
C)  The outlet should also be occluded to test the safety popoff for function. 
D)  If the device is a prefilled disposable unit, make sure all seals have been appropriately broken on assembly.

Question 7

Despite having the flowrate set on 15 LPM on a 30% aerosol to a T-piece,there is very little aerosol seen coming out of the aerosol tubing.What should the practitioner check?

Accepted Answer

The first thing that should be checked i

Question 8

The Centers for Disease Control and Prevention (CDC)recommends addressing exposure control issues when delivering an aerosol to the lung parenchyma by (1)administrative policy,(2)engineering controls,and (3)personal protective equipment,in that order.Which of the following is NOT a CDC recommendation for engineering controls?

Accepted Answer

A)  Booths or stalls for sputum induction and aerosolized medication administration in areas in which multiple patients are treated. 
B)  Frequent air exchanges to dilute concentration of aerosol in room to eliminate 99% of aerosol before the next patient enters and receives treatment in the area. 
C)  Filters or filtered scavenger systems to remove aerosols that cannot be contained. 
D)  Rinsing filters, nebulizers, and other contaminated components of the aerosol delivery system used with suspect agents as hazardous waste after each use. 
A)  Booths or stalls for sputum induction and aerosolized medication administration in areas in which multiple patients are treated. 
B)  Frequent air exchanges to dilute concentration of aerosol in room to eliminate 99% of aerosol before the next patient enters and receives treatment in the area. 
C)  Filters or filtered scavenger systems to remove aerosols that cannot be contained. 
D)  Rinsing filters, nebulizers, and other contaminated components of the aerosol delivery system used with suspect agents as hazardous waste after each use.

Question 9

Back pressure exerted downstream from the nebulizer will cause ______________

Accepted Answer

A)  the aerosol output to increase. 
B)  the total flow output of the unit to increase. 
C)  the delivered FIO₂ to increase. 
D)  the amount of air entrained through the entrainment ports to increase. 
A)  the aerosol output to increase. 
B)  the total flow output of the unit to increase. 
C)  the delivered FIO₂ to increase. 
D)  the amount of air entrained through the entrainment ports to increase.

Question 10

Which of the following situations would be a contraindication for Heat-Moisture Exchanger (HME)use to provide humidification to a mechanically ventilated patient?

Accepted Answer

A)  Body temperature of 34°C 
B)  Inspired Vt 600ml, expired Vt 400 ml 
C)  Spontaneous minute volume of 8 LPM 
D)  a and b 
A)  Body temperature of 34°C 
B)  Inspired Vt 600ml, expired Vt 400 ml 
C)  Spontaneous minute volume of 8 LPM 
D)  a and b

Question 11

What is the relative humidity of a gas that has the capacity to hold 40 mg/L of humidity,but only has an absolute humidity of 30 mg/L?

Accepted Answer

A)  100% 
B)  75% 
C)  14 mg/L 
D)  133% 
A)  100% 
B)  75% 
C)  14 mg/L 
D)  133%

Question 12

Connection of a large-volume nebulizer to the correct type flowmeter is ensured because the connection incorporates a:

Accepted Answer

A)  PISS fitting at the top of the unit. 
B)  ASSS fitting at the top of the unit. 
C)  DISS fitting at the top of the unit. 
D)  15 mmID fitting at the top of the unit 
A)  PISS fitting at the top of the unit. 
B)  ASSS fitting at the top of the unit. 
C)  DISS fitting at the top of the unit. 
D)  15 mmID fitting at the top of the unit

Question 13

When administering a medication via a small volume nebulizer to a patient,instruct the patient to take slow,deep breaths with a slight pause before exhaling.What is the purpose of the pause before exhaling?

Accepted Answer

A)  Allow deeper penetration of the medication into the lungs. 
B)  Decrease the risk of medication side effects. 
C)  Help the aerosol to deposit in the lungs. 
D)  Increase the delivered FI02 from the small volume nebulizer. 
A)  Allow deeper penetration of the medication into the lungs. 
B)  Decrease the risk of medication side effects. 
C)  Help the aerosol to deposit in the lungs. 
D)  Increase the delivered FI02 from the small volume nebulizer.

Question 14

A patient has an ultrasonic nebulizer ordered every 4 hours to help with secretion mobilization.After the treatment the patient complains of chest tightness and wheezing is heard upon auscultating the chest.What could be done to alleviate this problem?

Accepted Answer

Pre-treatment of the patient with a bron

Question 15

The presence of which one or more of the following may be an indication for administration of a water,isotonic,or hypotonic saline aerosol?

Accepted Answer

A)  Stridor 
B)  Diagnosis of laryngotracheobronchitis 
C)  Clinical history suggesting upper airway irritation and increased work of breathing, such as smoke inhalation 
D)  a, b, and c 
A)  Stridor 
B)  Diagnosis of laryngotracheobronchitis 
C)  Clinical history suggesting upper airway irritation and increased work of breathing, such as smoke inhalation 
D)  a, b, and c

Question 16

What is defined as is water in gaseous form,or vapor?

Accepted Answer

A)  Humidity 
B)  Aerosol 
C)  Humidity deficit 
D)  Barometric pressure 
A)  Humidity 
B)  Aerosol 
C)  Humidity deficit 
D)  Barometric pressure

Question 17

Which of the following is NOT an indication for bland aerosol administration?

Accepted Answer

A)  The need for sputum specimens 
B)  The need to deliver bronchodilators 
C)  The presence of upper airway edema 
D)  The presence of a bypassed upper airway 
A)  The need for sputum specimens 
B)  The need to deliver bronchodilators 
C)  The presence of upper airway edema 
D)  The presence of a bypassed upper airway

Question 18

How do Wick-type humidifiers increase the absolute humidity of a gas delivered to the patient?

Accepted Answer

A)  By increasing the temperature 
B)  By increasing the surface area of contact between the water and the gas 
C)  By incorporating an HME into the system 
D)  a and b 
A)  By increasing the temperature 
B)  By increasing the surface area of contact between the water and the gas 
C)  By incorporating an HME into the system 
D)  a and b

Question 19

Which of the following hazards or complications can occur with bland aerosol administration?

Accepted Answer

A)  Wheezing 
B)  Bronchodilation 
C)  Tachycardia 
D)  Tremors 
A)  Wheezing 
B)  Bronchodilation 
C)  Tachycardia 
D)  Tremors

Question 20

Which part of the ultrasonic nebulizer has the ability to convert electrical energy into mechanical energy?

Accepted Answer

A)  Amplitude 
B)  Frequency 
C)  Piezoelectric crystal 
D)  Couplant 
A)  Amplitude 
B)  Frequency 
C)  Piezoelectric crystal 
D)  Couplant

Exam 15: Humidity and Aerosol Therapy

What is the purpose of a baffle in a large volume nebulizer?

A patient with a tracheostomy is receiving oxygen via T-piece.The physician orders 70% oxygen to be delivered by heated aerosol.The patient's inspiratory flowrate is 35 LPM.How should this oxygen therapy be set up on the patient?

When monitoring the effectiveness of bronchodilator administration,which of the following pulmonary function tests would indicate the airway responsiveness the best?

When utilizing a Brigg's adaptor to connect the aerosol unit to a tracheostomy tube,a 6 inch piece of wide-bore tubing should be attached to the adaptor opposite the aerosol tubing coming from the nebulizer.What is the purpose of this tubing?

What controls the particle size generated by an ultrasonic nebulizer?

Which of the following is NOT part of the preparation of a bubble humidifier for use on a patient?

Despite having the flowrate set on 15 LPM on a 30% aerosol to a T-piece,there is very little aerosol seen coming out of the aerosol tubing.What should the practitioner check?

Back pressure exerted downstream from the nebulizer will cause ______________

Which of the following situations would be a contraindication for Heat-Moisture Exchanger (HME)use to provide humidification to a mechanically ventilated patient?

What is the relative humidity of a gas that has the capacity to hold 40 mg/L of humidity,but only has an absolute humidity of 30 mg/L?

Connection of a large-volume nebulizer to the correct type flowmeter is ensured because the connection incorporates a:

When administering a medication via a small volume nebulizer to a patient,instruct the patient to take slow,deep breaths with a slight pause before exhaling.What is the purpose of the pause before exhaling?

A patient has an ultrasonic nebulizer ordered every 4 hours to help with secretion mobilization.After the treatment the patient complains of chest tightness and wheezing is heard upon auscultating the chest.What could be done to alleviate this problem?

The presence of which one or more of the following may be an indication for administration of a water,isotonic,or hypotonic saline aerosol?

What is defined as is water in gaseous form,or vapor?

Which of the following is NOT an indication for bland aerosol administration?

How do Wick-type humidifiers increase the absolute humidity of a gas delivered to the patient?

Which of the following hazards or complications can occur with bland aerosol administration?

Which part of the ultrasonic nebulizer has the ability to convert electrical energy into mechanical energy?

Basics of Asepsis

Basic Patient Assessment: Vital Signs and Breath Sounds

Advanced Patient Assessment: Inspection, Palpation, and Percussion

Radiologic Assessment

Pulmonary Function Testing

Electrocardiography

Phlebotomy

Arterial Blood Gas Sampling

Hemodynamic Monitoring

Noninvasive Monitoring

Documentation and Goals Assessment

Oxygen Supply Systems

Oxygen Administration

Introduction to Respiratory Care Pharmacology

Bronchial Hygiene Therapy

Hyperinflation Therapy

Bronchoscopy Assisting

Equipment Processing and Surveillance

Emergency Airway Management

Artificial Airway Care

Chest Tubes

Insertion and Maintenance of Intravenous Lines

Noninvasive Positive-Pressure Ventilation

Continuous Mechanical Ventilation

Advanced Modes of Mechanical Ventilation

Wave Form Analysis

Weaning and Discontinuance of Mechanical Ventilation

Neonatal Mechanical Ventilation

Filters