You notice that the patient's secretions have become thicker and more difficult to
suction since the ventilator humidifier was replaced with an HME. The RT should
recommend which of the following?
A. Increase inspiratory flow
B. Decrease the temperature to the HME
C. Replace with a new HME
D. Replace the HME with a conventional heated humidifier - ANS ✓D. Replace the
HME with a conventional heated humidifier
Which of the following are indications for cool, bland aerosol therapy?
1. A cough must be induced for sputum collection
2. Mobilization of secretions must be improved
3. Postextubation inflammation of the upper airway must be treated
A. 1 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2, and 3 - ANS ✓D. 1, 2, and 3
You notice that very little mist is being produced by a nebulizer attached to an
aerosol mask. Which of the following could be responsible for this?
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, 2
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1. The liter flow is too high
2. The nebulizer jet is clogged with lint
3. The filter on the capillary tube is obstructed
A. 1 only
B. 2 only
C. 1 and 3 only
D. 2 and 3 only - ANS ✓D. 2 and 3 only
An autoimmune compromised patient is to be placed on oxygen with a
humidity/aerosol device. Which of the following devices is most likely to deliver
contaminated water to the patient?
A. Heated cascade humidifier
B. Bubble humidifier
C. Heated wick humidifier
D. Heated jet nebulizer - ANS ✓D. Heated jet nebulizer
To minimize an increased airway resistance produced by high-density aerosol
inhalation, the RT should recommend which of the following?
A. Administer a bronchodilator along with the aerosol
B. Instruct the patient to breathe through the nose
C. Use a heated nebulizer to deliver the aerosol
D. Perform chest physiotherapy after the aerosol treatment - ANS ✓A.
Administer a bronchodilator along with the aerosol
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The RT is asked to recommend a humidifier that will be able to provide the
highest water vapor content to the patient's airway. Which of the following
humidifiers should the therapist select?
A. Pass-over
B. HME
C. Heated wick
D. Bubble - ANS ✓C. Heated wick
A heated humidifier is delivering 100% body humidity to a patient's airway.
What volume of water is being delivered?
A. 24 mg/L
B. 37 mg/L
C. 44 mg/L
D. 47 mg/L - ANS ✓C. 44 mg/L
A patient is experiencing cardiac arrhythmias and muscle weakness. An arterial
blood gas determines that the patient is in metabolic alkalosis. Which of the
following is the most appropriate lab value to assess at this time?
A. WBC
B. BUN
C. Plasma protein
D. Potassium - ANS ✓D. Potassium
The term used to describe a condition is which a patient has difficulty breathing
while in the supine position is which of the following?
A. Orthopnea
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