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CRT PRACTICE EXAM II (2024) QUESTIONS & ANSWERS SOLVED 100% CORRECT!!
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CRT PRACTICE EXAM II (2024) QUESTIONS & ANSWERS SOLVED 100% CORRECT!!
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CRT PRACTICE EXAM II(2024) QUESTIONS &
ANSWERS SOLVED
100% CORRECT!!
CRT
Evatee 10/9/24 CRT
,CRT PRACTICE EXAM II (2024) QUESTIONS &
ANSWERS SOLVED 100% CORRECT!!
1. All of the following are true statements regarding the use of an
oropharyngeal airway EXCEPT:
a. An oropharyngeal airway that is too large may obstruct the airway
b. An oropharyngeal airway is contraindicated for use in unconscious patients
c. An oropharyngeal airway may induce gagging and vomiting
d. An oropharyngeal airway that is too small may obstruct the airway Answer -
ANS: B.
EX: An oropharyngeal airway is NOT contraindicated for use in unconscious
patients. Airway is not contraindicated for use in an unconscious patient, only
an alert patient. The distal tip of the oropharyngeal airway may irritate the
hypopharyngeal area and induce gagging and vomiting. If an ororpharyngeal
airway is too large the distal tip may obstruct the hypopharyngeal area,
resulting in airway obstruction. If an oropharyngeal airway is too small the
distal tip may push the tongue the back of the throat, resulting in airway
obstruction.
2 Which of the following would the respiratory therapist normally observe if a
conscious patient were breathing in the assist/control mode of ventilator
support?
1. A slight drop in pressure before each patient triggered breath
2. A fixed or constant length of expiration
3. a variable time interval between breaths
A. 2 only
B. 2 and 3 only
C. 1, 2, and 3
,D. 1 and 3 only Answer - ANS: D
EX: 1. True - patient initiated breaths are normally observed by a slight dip in
inspiratory pressure just prior to the start of mechanical breath. 2. False - the
length of expiration is variable. 3. True - with patient initiated breaths mixed
with timed breaths, the time interval would be variable between breaths, not
constant.
3 An intubated mechanically ventilated asthmatic patient is struggling to
initiate inspiration while in the assist/control mode. Which of the following
ventilator settings should the respiratory therapist first check to determine the
cause of this problem?
a. The pressure limit
b. The PEEP control
c. The tidal volume
d. The sensitivity Answer - ANS: D
EX: In this situation, the inspiratory threshold is set too low, adjustment of the
sensitivity setting should be done.
4 Which of the following would be an appropriate recommendation for an
intubated mechanically ventilated patient receiving an FIO2 of 0.80 and PEEP of
10cm H2O whose clinical condition begins to improve as evidenced by chest x-
ray , physical examination, and arterial blood gas values?
a. Lower the inspiratory flow rate
b. Decrease the ventilatory rate
c. Decrease the FIO2
d. Remove PEEP Answer - ANS: C
EX: In this situation an FIO2 of. 80 is unwarranted and should be lowered
before adjusting any other ventilatory parameter.
, 5 Which of the following breathing patterns help to optimize aerosol drug
deposition of the deeper recesses of the lungs?
1. Mouth breathing
2. Rapid, deep inspirations
3. Inspiratory pause
4. Pursed-lip breathing
A. 2 and 3 only
B. 1 and 2 only
C. 1, 3, and 4 only
D. 1, 2 ,3 and 4 Answer - ANS: C
To optimize aerosol drug deposition to the deeper recesses of the lungs, a
patient should be instructed to take slow, deep inspirations through the mouth,
pause at peak inspiration then slowly exhale trough pursed lips.
6 Which of the following patients should the respiratory therapist recommend
immediate intubation?
A. a patient experiencing an acute episode of bronchospasm
B. patient with thickened, retained secretions
C. patient with epiglottis
D. patient with post-extubation stridor Answer - ANS: C
EX: of the patient conditions listed, only epiglottitis, because of its life-
threatening natured, requires immediate intubation.
7 Which of the following factors will cause the FIO2 of the high-flow oxygen
delivery device to decrease?
1. A shallow tidal volume
2. A decreased minute ventilation
3. A rapid respiratory rate
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