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RES 154 Board Final Exam: Questions & Solutions (Expert Verified)
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RES 154 Board Final Exam: Questions & Solutions (Expert Verified)
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RES 154 Board Final Exam: Questions & Solutions(Expert Verified)
The respiratory therapist 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. Heat moisture exchanger
C. Heated wick
D. Bubble Right Ans - C. Heated wick
To minimize increased airway resistance produced by high-density aerosol
inhalation, the respiratory therapist should recommend which of the
following?
A. Administer a bronchodilator along with the aerosol
B. Instruct patient to breath through the nose
C. Use a heated nebulizer to deliver the aerosol
D. Perform chest physiotherapy after the nebulizer Right Ans - A.
Administer a bronchodilator along with the aerosol
You notice very little mist is being produced by a nebulizer attached to an
aerosol mask. Which of the following could be responsible for this?
1. Liter flow is too high
2. Nebulizer jet is clogged with ling
3. Filter on the capillary tube is obstructed Right Ans - 2, 3
Which of the following are indications for cool, bland aerosol therapy?
1. Cough must be induced for sputum
2. Mobilization of secretions must be improved
3. Post-extubation inflammation of the upper airway must be treated Right
Ans - 1, 2, 3
You notice that the patients secretions have become thicker and more difficult
to suction since the ventilator humidifier was replaced with a heat moisture
exchanger. The RT should recommend which of the following?
A. Increase inspiratory flow
B. Decrease temperature to the HME
C. Replace with a new HME
, D. Replace the HME with a conventional heated humidifier Right Ans - D.
Replace the HME with a conventional heated humidifier
After connecting a nasal cannula to the humidifier outlet, you kink the tubing
and hear a whistling noise coming the 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 Right Ans - C. The
humidifier has no leaks
Secretions tend to become thicker if the inspired air has which of the
following characteristics?
A. Relative humidity of 100% at body temperature
B. 32 mg H2O per liter of gas
C. A water vapor pressure of 47 mmHg
D. 48 mg H2O per liter of gas Right Ans - B. 32 mg H2O per liter of gas
A patient is receiving 30% oxygen via an air-entrainment mask at a flow of 5
L/min. The total flow delivery by this device is which of the following?
A. 36 L/min
B. 45 L/min
C. 54 L/min
D. 60 L/min Right Ans - B. 45 L/min
A patient breathing 50% oxygen has a PaO2 of 248 torr. Which of the
following should the RT recommend?
A. Discontinue oxygen therapy
B. Decrease oxygen to 30%
C. Titrate oxygen to maintain an SpO2 greater than 93%
D. Repeat the blood gases because the PaO2 is not possible on this FiO2
Right Ans - C. Titrate oxygen to maintain an SpO2 greater than 93%
A severe COPD patient arrives in the emergency department on a 2 L/min
nasal cannula. Arterial blood gas results follow: pH - 7.32, PaCO2 - 67 mmHg,
PaO2 - 62 mmHg, HCO3 - 38 mEq/L. Which of the following is the most
appropriate recommendation?
A. Increase the liters to 4 L/min
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