Question 1

Hazards and complications of bland aerosol therapy include which of the following?
1) Bronchospasm
2) Overhydration
3) Infection
4) Hemoconcentration

Accepted Answer

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

Question 2

What is the goal of using an unheated bubble humidifier with oronasal O2 delivery systems?

Accepted Answer

A)  Raise the humidity of the gas to ambient levels. 
B)  Fully saturate the inspired gas to body temperature, ambient pressure, saturated (BTPS) conditions. 
C)  Cool the gas down to below room temperature. 
D)  Fully saturate the inspired gas to ambient temperature, ambient pressure, saturated (ATPS) conditions. 
A)  Raise the humidity of the gas to ambient levels. 
B)  Fully saturate the inspired gas to body temperature, ambient pressure, saturated (BTPS) conditions. 
C)  Cool the gas down to below room temperature. 
D)  Fully saturate the inspired gas to ambient temperature, ambient pressure, saturated (ATPS) conditions. A

Question 3

What is the point in the respiratory track where inspired gas reaches body temperature, ambient pressure, saturated (BTPS) conditions?

Accepted Answer

A)  Point of thermal equilibrium 
B)  Hygroscopic saturation boundary 
C)  Thermal inversion boundary 
D)  Isothermic saturation boundary 
A)  Point of thermal equilibrium 
B)  Hygroscopic saturation boundary 
C)  Thermal inversion boundary 
D)  Isothermic saturation boundary D

Question 4

During routine use on an intubated patient, a heated humidifier should deliver inspired gas at which of the following?

Accepted Answer

A)  Temperature of 33 ± 2° C, with a minimum of 30 mg/L of water vapor 
B)  Temperature of 37 ± 2° C, with a minimum of 44 mg/L of water vapor 
C)  Temperature of 20 ± 2° C, with a minimum of 10 mg/L of water vapor 
D)  Temperature of 30 ± 2° C, with a minimum of 24 mg/L of water vapor 
A)  Temperature of 33 ± 2° C, with a minimum of 30 mg/L of water vapor 
B)  Temperature of 37 ± 2° C, with a minimum of 44 mg/L of water vapor 
C)  Temperature of 20 ± 2° C, with a minimum of 10 mg/L of water vapor 
D)  Temperature of 30 ± 2° C, with a minimum of 24 mg/L of water vapor

Question 5

A heated humidifier should trigger both auditory and visual alarms and interrupt power to the heater when the delivered temperature exceeds which of the following?

Accepted Answer

A)  25° C 
B)  30° C 
C)  35° C 
D)  40° C 
A)  25° C 
B)  30° C 
C)  35° C 
D)  40° C

Question 6

What is the most common device used to generate bland aerosols?

Accepted Answer

A)  Small-volume jet nebulizer 
B)  Ultrasonic nebulizer 
C)  Large-volume jet nebulizer 
D)  Spinning disk nebulizer 
A)  Small-volume jet nebulizer 
B)  Ultrasonic nebulizer 
C)  Large-volume jet nebulizer 
D)  Spinning disk nebulizer

Question 7

Factors affecting a humidifier's performance include which of the following?
1) Surface area
2) Temperature
3) Time of contact
4) Outlet size

Accepted Answer

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

Question 8

What device adds molecular water to gas?

Accepted Answer

A)  Agitator 
B)  Humidifier 
C)  Nebulizer 
D)  Atomizer 
A)  Agitator 
B)  Humidifier 
C)  Nebulizer 
D)  Atomizer

Question 9

Increasing the flow through an unheated bubble humidifier has which of the following effects?

Accepted Answer

A)  Decreasing the water vapor content 
B)  Decreasing the relative humidity 
C)  Increasing the water vapor content 
D)  Increasing the relative humidity 
A)  Decreasing the water vapor content 
B)  Decreasing the relative humidity 
C)  Increasing the water vapor content 
D)  Increasing the relative humidity

Question 10

Which of the following inspired conditions should be maintained when delivering medical gases directly into the trachea through an endotracheal tube or a tracheotomy tube?

Accepted Answer

A)  50% relative humidity (RH) at 20° to 22° C 
B)  100% RH at 37° to 42° C 
C)  95% RH at 29° to 32° C 
D)  100% RH at 32° to 35° C 
A)  50% relative humidity (RH) at 20° to 22° C 
B)  100% RH at 37° to 42° C 
C)  95% RH at 29° to 32° C 
D)  100% RH at 32° to 35° C

Question 11

When using a servo-controlled heated humidifier to deliver gas to an infant, the thermistor probe should be placed where?

Accepted Answer

A)  Inside the circuit, outside the incubator, or away from the radiant warmer 
B)  Outside the circuit, inside the incubator, or away from the radiant warmer 
C)  Inside the circuit, inside the incubator, or away from the radiant warmer 
D)  Outside the circuit, outside the incubator, or away from the radiant warmer 
A)  Inside the circuit, outside the incubator, or away from the radiant warmer 
B)  Outside the circuit, inside the incubator, or away from the radiant warmer 
C)  Inside the circuit, inside the incubator, or away from the radiant warmer 
D)  Outside the circuit, outside the incubator, or away from the radiant warmer

Question 12

Which of the following are acceptable means to help minimize the problems caused by condensation in heated humidifier circuits?
1) Installing water traps in the circuit
2) Using a heated-wire circuit
3) Setting heater temperature to 25° to 28° C

Accepted Answer

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

Question 13

Which of the following devices would you recommend to administer bland water aerosol to an infant or small child?

Accepted Answer

A)  Face tent 
B)  Croup tents 
C)  T tube 
D)  Aerosol mask 
A)  Face tent 
B)  Croup tents 
C)  T tube 
D)  Aerosol mask

Question 14

An ideal heat and moisture exchanger (HME) should have an efficiency rating of at least which of the following?

Accepted Answer

A)  30% 
B)  50% 
C)  70% 
D)  90% 
A)  30% 
B)  50% 
C)  70% 
D)  90%

Question 15

Simple unheated bubble humidifiers are commonly used to humidify gases with what type of systems?

Accepted Answer

A)  Mechanical ventilation 
B)  Oronasal O2 delivery 
C)  Tracheal O2 airway 
D)  Aerosol drug delivery 
A)  Mechanical ventilation 
B)  Oronasal O2 delivery 
C)  Tracheal O2 airway 
D)  Aerosol drug delivery

Question 16

A patient has been supported by a mechanical ventilator using a heat and moisture exchanger for the last 3 days. Suctioning reveals an increase in the amount and tenacity of secretions. Which of the following actions is indicated?

Accepted Answer

A)  Increase the hygroscopic condenser humidifier temperature. 
B)  Reassess the patient's secretions over the next 24 to 48 hr. 
C)  Replace the hygroscopic condenser humidifier with a new one. 
D)  Switch the patient to a large-volume heated humidifier. 
A)  Increase the hygroscopic condenser humidifier temperature. 
B)  Reassess the patient's secretions over the next 24 to 48 hr. 
C)  Replace the hygroscopic condenser humidifier with a new one. 
D)  Switch the patient to a large-volume heated humidifier.

Question 17

A patient receiving nasal O2 at 3 L/min complains of nasal dryness and irritation. Which of the following actions would be appropriate?

Accepted Answer

A)  Recommending that the flow be decreased to 2 L/min 
B)  Adding a humidifier to the delivery system 
C)  Recommending that the flow be increased to 4 L/min 
D)  Switching to a simple mask at 3 L/min 
A)  Recommending that the flow be decreased to 2 L/min 
B)  Adding a humidifier to the delivery system 
C)  Recommending that the flow be increased to 4 L/min 
D)  Switching to a simple mask at 3 L/min

Question 18

To minimize problems with environmental safety when aerosol therapy is prescribed for immunosuppressed patients or those with tuberculosis, what precautions should you follow?
1) Those for tuberculosis exposure
2) Centers for Disease Control and Prevention (CDC) standards and contact precautions
3) CDC standards and airborne precautions

Accepted Answer

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

Question 19

A physician orders bland water aerosol administration to a patient with an intact upper airway. Which of the following airway appliances could you use to meet this goal?
1) Simple O2 mask
2) Face tent
3) T tube
4) Aerosol mask

Accepted Answer

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

Question 20

For which of the following patients would you recommend bland aerosol therapy administration?
1) Patient with a history of airway hyperresponsiveness
2) Patient with a bypassed upper airway
3) Patient with active bronchoconstriction

Accepted Answer

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

Exam 38: Humidity and Bland Aerosol Therapy

Hazards and complications of bland aerosol therapy include which of the following? 1) Bronchospasm 2) Overhydration 3) Infection 4) Hemoconcentration

What is the goal of using an unheated bubble humidifier with oronasal O2 delivery systems?

What is the point in the respiratory track where inspired gas reaches body temperature, ambient pressure, saturated (BTPS) conditions?

During routine use on an intubated patient, a heated humidifier should deliver inspired gas at which of the following?

A heated humidifier should trigger both auditory and visual alarms and interrupt power to the heater when the delivered temperature exceeds which of the following?

What is the most common device used to generate bland aerosols?

Factors affecting a humidifier's performance include which of the following? 1) Surface area 2) Temperature 3) Time of contact 4) Outlet size

What device adds molecular water to gas?

Increasing the flow through an unheated bubble humidifier has which of the following effects?

Which of the following inspired conditions should be maintained when delivering medical gases directly into the trachea through an endotracheal tube or a tracheotomy tube?

When using a servo-controlled heated humidifier to deliver gas to an infant, the thermistor probe should be placed where?

Which of the following are acceptable means to help minimize the problems caused by condensation in heated humidifier circuits? 1) Installing water traps in the circuit 2) Using a heated-wire circuit 3) Setting heater temperature to 25° to 28° C

Which of the following devices would you recommend to administer bland water aerosol to an infant or small child?

An ideal heat and moisture exchanger (HME) should have an efficiency rating of at least which of the following?

Simple unheated bubble humidifiers are commonly used to humidify gases with what type of systems?

A patient has been supported by a mechanical ventilator using a heat and moisture exchanger for the last 3 days. Suctioning reveals an increase in the amount and tenacity of secretions. Which of the following actions is indicated?

A patient receiving nasal O2 at 3 L/min complains of nasal dryness and irritation. Which of the following actions would be appropriate?

A physician orders bland water aerosol administration to a patient with an intact upper airway. Which of the following airway appliances could you use to meet this goal? 1) Simple O2 mask 2) Face tent 3) T tube 4) Aerosol mask

For which of the following patients would you recommend bland aerosol therapy administration? 1) Patient with a history of airway hyperresponsiveness 2) Patient with a bypassed upper airway 3) Patient with active bronchoconstriction

History of Respiratory Care

Delivering Evidence-Based Respiratory Care

Quality, Patient Safety, and Communication, and Recordkeeping

Principles of Infection Prevention and Control

Ethical and Legal Implications of Practice

Physical Principles of Respiratory Care

E-Medicine in Respiratory Care

Fundamentals of Respiratory Care Research

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

Interpreting Clinical and Laboratory Data

Interpreting the Electrocardiogram

Analysis and Monitoring of Gas Exchange

Pulmonary Function Testing

Review of Thoracic Imaging

Flexible Bronchoscopy and the Respiratory Therapist

Nutrition Assessment

Pulmonary Infections

Obstructive Lung Disease: Chronic Obstructive Pulmonary Disease Copd, Asthma, and Related Diseases

Interstitial Lung Disease

Pleural Diseases

Pulmonary Vascular Disease

Acute Respiratory Distress Syndrome

Trauma, Burns and Near Drowning

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

Aerosol Drug Therapy

Storage and Delivery of Medical Gases

Medical Gas Therapy

Lung Expansion Therapy

Airway Clearance Therapy Act

Respiratory Failure and the Need for Ventilatory Support

Mechanical Ventilators

Physiology of Ventilatory Support

Patient Ventilator Interaction

Initiating and Adjusting Invasive Ventilatory Support

Noninvasive Ventilation

Extracorporeal Life Support Ecls

Monitoring 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

What is the goal of using an unheated bubble humidifier with oronasal O₂ delivery systems?

A patient receiving nasal O₂ at 3 L/min complains of nasal dryness and irritation. Which of the following actions would be appropriate?

A physician orders bland water aerosol administration to a patient with an intact upper airway. Which of the following airway appliances could you use to meet this goal? 1) Simple O₂ mask 2) Face tent 3) T tube 4) Aerosol mask