Respiratory Therapeutics - FINAL EXAM REVIEW 2024/2025 WITH 100% CORRECT ANSWERS
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Course
Respiratory Therapeutics - F
Institution
Respiratory Therapeutics - F
Specific Clinical objectives of Oxygen therapy include which of the following? Choose all that apply. correct answersdecrease the symptoms caused by chronic hypoxemia
decrease the workload hypoxemia imposes on the heart and lungs
correct documented arterial hypoxemia
Properly applied O2 therap...
Specific Clinical objectives of Oxygen therapy include which of the following? Choose all that apply.
correct answersdecrease the symptoms caused by chronic hypoxemia
decrease the workload hypoxemia imposes on the heart and lungs
correct documented arterial hypoxemia
Properly applied O2 therapy can decrease which of the following? Choose all that apply correct
answersventilatory demand
work of breathing
cardiac output
Which of the following would indicate a need for O2 therapy for an adult or child? Choose all that apply.
correct answersSaO2 less than 90%
PaO2 less than 60 mmHg
Which of the following signs and symptoms are associated with the presence of hypoxemia? correct
answersTachypnea
tachycardia
cyanosis
According to AARC clinical practice guidelines, what is the minimum frequency for checking the
functioning of an O2 delivery system? correct answersEvery 24 Hours
A patient with chronic hypercapnia placed on an FIO2 of 0.6 starts hypoventilating. What is a possible
cause of this phenomenon? correct answersO2-induced hypoventilation
To minimize the risk of retinopathy of prematurity (ROP), the American Academy of Pediatrics
recommends keeping the PaO2 below what level? correct answers80 mm Hg
,To ensure a stable FIO2 under varying patient demands, what must an O2 delivery system do? correct
answersIt must provide all the gas needed by the patient during inspiration.
Which of the following statements is false about low-flow O2 delivery systems? correct answersThe
greater the patient's inspiratory flow, the greater is the FIO2
Delivery systems that provide only a portion of a patient's inspired gas are referred to as what? correct
answersvariable-performance systems
Low-flow O2 delivery systems used in respiratory care include all of the following except: correct
answersair-entrainment mask
A 27-year-old woman received from the emergency department is on a nasal cannula at 5 L/min.
Approximately what FIO2 is this patient receiving? correct answers40%
You enter the room of a patient who is receiving nasal O2 through a bubble humidifier at 5 L/min. You
immediately notice that the humidifier pressure relief is popping off. Which of the following actions
would be most appropriate in this situation? correct answersLook for crimped or twisted delivery tubing.
A physician orders 2 L/min O2 through a simple mask to a 33-year-old postoperative woman with
moderate hypoxemia breathing room air (PaO2 = 52 mm Hg). What would be the correct action at this
time? correct answersRecommend a flow of at least 5 L/min to wash out carbon dioxide (CO2).
What is the minimim acceptable analyzed FIO2 for a concentrator running at 4 LPM is: correct answers85
%
Match the following devices with the appropriate FIO2 correct answersnasal cannula - 24-44 %
Simple mask - 35-50 %
non-rebreather - 60-80 %
venturi mask - 24-50 %
partial non-rebreather - 35-60 %
, A physician orders supplemental O2 for a patient through a nasal cannula at a flow of 12 L/min. When
you ask what the goal is, the physician states that the patient should receive about 60% O2. Which of the
following should you recommend? correct answersThe O2 should be given through a simple mask set at
5 to 12 L/min.
You must deliver the highest possible FIO2 to a 67-year-old man with pulmonary edema breathing at a
rate of 35/min. Which of the following O2 delivery systems would be most appropriate? correct
answersnonrebreathing mask at 12 to 15 L/min
You note that the air intake ports surrounding hte jet of a 35% air-entrainment mask are partially
obstructed by the patient's bedding. Which of the following would you expect? correct answersdecrease
in the device's total output flow
increase in the percent O2 delivered by the device
A patient is receiving O2 through a nonrebreathing mask set at 8 L/min. You notice that the mask's
reservoir bag collapses completely before the end of each inspiration. Which of the following actions is
appropriate in this case? correct answersIncrease the liter flow.
A true high-flow O2 delivery system should provide at least what flow? correct answers60 L/min
Which of the following is FALSE about air-entrainment systems? correct answersTheir FIO2 values are
directly proportional to their total flow.
A 45-year-old patient with congestive heart failure is receiving O2 through a 35% air-entrainment mask.
With an O2 input of 6 L/min, what is the total output gas flow? correct answers36 L/min
What is a unique feature of OxyMask? correct answersFlow rate can be 1-40 LPM
Can deliver 24-90% FIO2
You connect an intubated patient to an air-entrainment nebulizer system through a T-tube set at 60%
with an input flow of 15 L/min. Toward the middle of inspiration, you observe that mist stops exiting
from the open end of the T-tube. What does this indicate? correct answersPatient is not receiving 60%
O2.
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