1|Page
NBRC MOCK TMC EXAM REVIEW
QUESTIONS WITH VERIFIED
ANSWERS 2026
After connecting a nasal cannula to the humidifier outlet, you kink the tubing and
hear a whistling noise coming from the humidifier. Which of the following most
likely has caused this?
A. The humidifier jar is cracked
B. The capillary tube in the humidifier is disconnected
C. The humidifier has no leaks
D. The top of the humidifier is not screwed on tightly - correct-answer - C. The
humidifier has no leaks
,2|Page
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 - correct-answer - 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
, 3|Page
C. 2 and 3 only
D. 1, 2, and 3 - correct-answer - 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?
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 - correct-answer - D. 2 and 3 only
NBRC MOCK TMC EXAM REVIEW
QUESTIONS WITH VERIFIED
ANSWERS 2026
After connecting a nasal cannula to the humidifier outlet, you kink the tubing and
hear a whistling noise coming from the humidifier. Which of the following most
likely has caused this?
A. The humidifier jar is cracked
B. The capillary tube in the humidifier is disconnected
C. The humidifier has no leaks
D. The top of the humidifier is not screwed on tightly - correct-answer - C. The
humidifier has no leaks
,2|Page
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 - correct-answer - 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
, 3|Page
C. 2 and 3 only
D. 1, 2, and 3 - correct-answer - 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?
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 - correct-answer - D. 2 and 3 only
