Question 1

What are some problems common to mist tents? 1) Heat retention 2) CO₂ buildup 3) Hypothermia

Accepted Answer

Mist tents generally do not cause hypothermia as they are designed to regulate body temperature. However, heat retention and CO₂ buildup are common problems that can occur in mist tents.

Question 2

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

Accepted Answer

The large-volume jet nebulizer is the most common device used to generate bland aerosols.

Question 3

What is the total water output of unheated large-volume jet nebulizers?

Accepted Answer

Depending on the design, input flow, and air-entrainment setting, the total water output of unheated large-volume jet nebulizers varies between 26 and 35 mg H₂O/L.

Question 4

How often would you recommend that a home care patient disinfect a home ultrasonic room humidifier?

Accepted Answer

In the absence of a manufacturer's recommendation, these units should undergo appropriate disinfection at least every 6 days.

Question 5

The aerosol output (in mg/L) of an ultrasonic nebulizer depends mainly on which of the following?

Accepted Answer

Amplitude affects water output.

Question 6

To produce the highest possible density aerosol from an ultrasonic nebulizer, how would you set the controls?

Accepted Answer

To produce the highest possible density aerosol from an ultrasonic nebulizer, you would want to set the amplitude high and the flow rate low. This is because a high amplitude will create larger droplets, which will then be broken down into smaller droplets by the ultrasonic vibration. At a low flow rate, there is more time for the droplets to be broken down, leading to a higher density aerosol.

Question 7

Which of the following measures can help to ensure a good sputum sample?

Accepted Answer

To ensure a good sputum sample, every effort must be made to separate saliva from true respiratory tract secretions. In some cases, protocols include having patients brush their teeth and tongue surface thoroughly and rinse their mouths before sputum induction.

Question 8

A physician orders bland water aerosol administration to a patient with a tracheostomy. Which of the following airway devices could you use to meet this goal?
1) Tracheostomy mask
2) Face tent
3) T tube
4) Aerosol mask

Accepted Answer

1 and 3 only. A tracheostomy mask and a T tube are specifically designed for patients with tracheostomies, allowing for the direct delivery of humidity and aerosol therapy to the tracheostomy site.

Question 9

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

2 and 4 onlyA face tent and an aerosol mask are appropriate choices for delivering bland water aerosol to a patient with an intact upper airway. These devices are designed to provide aerosol therapy without needing direct connection to an artificial airway, making them suitable for patients who can breathe without assistance.

Question 10

Which of the following nebulizers uses a piezoelectric transducer to generate liquid particle aerosols?

Accepted Answer

An ultrasonic nebulizer is an electrically powered device that uses a piezoelectric crystal to generate aerosol.

Question 11

Which of the following principles is used by the ultrasonic nebulizer to produce aerosol droplets?

Accepted Answer

This crystal transducer converts radio waves into high-frequency mechanical vibrations (sound).

Question 12

For which of the following patients might you recommend bland aerosol therapy via an ultrasonic nebulizer (USN)?
1) Patient with upper airway edema
2) Patient with a bypassed upper airway
3) Patient who must provide a sputum specimen

Accepted Answer

The answer of For which of the following patients might...

Question 13

For what should sputum collected by aerosol therapy induction be inspected?
1) Color
2) Volume
3) Odor
4) Consistency

Accepted Answer

Sputum collected by aerosol therapy induction should be inspected for color, volume, odor, and consistency to assess the patient's respiratory condition accurately and determine the appropriate treatment.

Question 14

Which of the following are components of an ultrasonic nebulizer?
1) Air-entrainment orifice
2) Radiofrequency generator
3) Nebulizer chamber
4) Piezoelectric transducer
5) Blower or fan

Accepted Answer

Ultrasonic nebulizers use a piezoelectric transducer to create ultrasonic waves, which then generate a fine mist from the liquid medication in the nebulizer chamber. A radiofrequency generator powers the transducer, and a blower or fan helps to disperse the aerosolized medication for inhalation. An air-entrainment orifice is not typically a component of ultrasonic nebulizers; it's more associated with jet nebulizers.

Question 15

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

Accepted Answer

Infants and small children may not readily tolerate direct airway appliances such as masks, so enclosures such as mist tents and aerosol hoods are used to deliver bland aerosol therapy to these patients.

Question 16

Which of the following mean mass aerodynamic diameter (MMAD) aerosol suspensions is produced by an ultrasonic nebulizer operated at 1.25 MHz?

Accepted Answer

A nebulizer operating at 1.25 MHz produces an aerosol with an MMAD of between 4 and 6 µm.

Question 17

All mist tents prevent CO₂ build-up by what process?

Accepted Answer

CO₂ build-up can be reduced by providing sufficiently high gas flow rates.

Question 18

The particle size produced by an ultrasonic nebulizer depends mainly on which of the following?

Accepted Answer

The frequency at which the crystal vibrates, preset by the manufacturer, determines aerosol particle size.

Question 19

What is the total water output of heated large-volume jet nebulizers?

Accepted Answer

When heated, output increases to between 33 and 55 mg H₂O/L, mainly because of increased vapor capacity.

Question 20

Which of the following would indicate that administration of a bland water aerosol to a patient with postextubation upper airway edema was having the desired effect? 1) Decreased work of breathing 2) Improved vital signs 3) Decreased stridor or dyspnea 4) Improved O₂ saturation

Accepted Answer

The desired effect of administering a bland water aerosol to a patient with postextubation upper airway edema includes decreased work of breathing, improved vital signs, decreased stridor or dyspnea, and improved oxygen saturation, as these are direct indicators of reduced airway edema and improved respiratory function.

Quiz 38: Humidity and Bland Aerosol Therapy

What are some problems common to mist tents? 1) Heat retention 2) CO₂ buildup 3) Hypothermia

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

What is the total water output of unheated large-volume jet nebulizers?

How often would you recommend that a home care patient disinfect a home ultrasonic room humidifier?

The aerosol output (in mg/L) of an ultrasonic nebulizer depends mainly on which of the following?

To produce the highest possible density aerosol from an ultrasonic nebulizer, how would you set the controls?

Which of the following measures can help to ensure a good sputum sample?

A physician orders bland water aerosol administration to a patient with a tracheostomy. Which of the following airway devices could you use to meet this goal? 1) Tracheostomy mask 2) Face tent 3) T tube 4) Aerosol mask

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

Which of the following nebulizers uses a piezoelectric transducer to generate liquid particle aerosols?

Which of the following principles is used by the ultrasonic nebulizer to produce aerosol droplets?

For which of the following patients might you recommend bland aerosol therapy via an ultrasonic nebulizer (USN) ? 1) Patient with upper airway edema 2) Patient with a bypassed upper airway 3) Patient who must provide a sputum specimen

For what should sputum collected by aerosol therapy induction be inspected? 1) Color 2) Volume 3) Odor 4) Consistency

Which of the following are components of an ultrasonic nebulizer? 1) Air-entrainment orifice 2) Radiofrequency generator 3) Nebulizer chamber 4) Piezoelectric transducer 5) Blower or fan

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

Which of the following mean mass aerodynamic diameter (MMAD) aerosol suspensions is produced by an ultrasonic nebulizer operated at 1.25 MHz?

All mist tents prevent CO₂ build-up by what process?

The particle size produced by an ultrasonic nebulizer depends mainly on which of the following?

What is the total water output of heated large-volume jet nebulizers?

Which of the following would indicate that administration of a bland water aerosol to a patient with postextubation upper airway edema was having the desired effect? 1) Decreased work of breathing 2) Improved vital signs 3) Decreased stridor or dyspnea 4) Improved O₂ saturation

Quiz 38: Humidity and Bland Aerosol Therapy

What are some problems common to mist tents? 1) Heat retention 2) CO2 buildup 3) Hypothermia

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

What is the total water output of unheated large-volume jet nebulizers?

How often would you recommend that a home care patient disinfect a home ultrasonic room humidifier?

The aerosol output (in mg/L) of an ultrasonic nebulizer depends mainly on which of the following?

To produce the highest possible density aerosol from an ultrasonic nebulizer, how would you set the controls?

Which of the following measures can help to ensure a good sputum sample?

A physician orders bland water aerosol administration to a patient with a tracheostomy. Which of the following airway devices could you use to meet this goal? 1) Tracheostomy mask 2) Face tent 3) T tube 4) Aerosol mask

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

Which of the following nebulizers uses a piezoelectric transducer to generate liquid particle aerosols?

Which of the following principles is used by the ultrasonic nebulizer to produce aerosol droplets?

For which of the following patients might you recommend bland aerosol therapy via an ultrasonic nebulizer (USN) ? 1) Patient with upper airway edema 2) Patient with a bypassed upper airway 3) Patient who must provide a sputum specimen

For what should sputum collected by aerosol therapy induction be inspected? 1) Color 2) Volume 3) Odor 4) Consistency

Which of the following are components of an ultrasonic nebulizer? 1) Air-entrainment orifice 2) Radiofrequency generator 3) Nebulizer chamber 4) Piezoelectric transducer 5) Blower or fan

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

Which of the following mean mass aerodynamic diameter (MMAD) aerosol suspensions is produced by an ultrasonic nebulizer operated at 1.25 MHz?

All mist tents prevent CO2 build-up by what process?

The particle size produced by an ultrasonic nebulizer depends mainly on which of the following?

What is the total water output of heated large-volume jet nebulizers?

Which of the following would indicate that administration of a bland water aerosol to a patient with postextubation upper airway edema was having the desired effect? 1) Decreased work of breathing 2) Improved vital signs 3) Decreased stridor or dyspnea 4) Improved O2 saturation

What are some problems common to mist tents? 1) Heat retention 2) CO₂ buildup 3) Hypothermia

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

All mist tents prevent CO₂ build-up by what process?

Which of the following would indicate that administration of a bland water aerosol to a patient with postextubation upper airway edema was having the desired effect? 1) Decreased work of breathing 2) Improved vital signs 3) Decreased stridor or dyspnea 4) Improved O₂ saturation