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Lindsey Jones Practice Exam Qs w/ Explanations A routine screening blood gas performed on an asymptomatic patient prior to surgery shows the following: pH: 7.38 PaCO2: 42 PaO2: 80 HCO3: 26 SaO2: 96% COHb: 24%

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  • October 26, 2024
  • 101
  • 2024/2025
  • Exam (elaborations)
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  • lindsey jones practice exam qs w explanations

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Lindsey Jones Practice Exam Qs w/
Explanations

A routine screening blood gas performed on an asymptomatic patient prior to surgery shows the

following:




pH: 7.38

PaCO2: 42

PaO2: 80

HCO3: 26

SaO2: 96%

COHb: 24%




What should the RRT do?




a. place the patient on a NRB mask

b. report the findings and emphasize that the patient is likely a smoker

c. evaluate saturation using a single wave-length spectrophotometer


d. run quality control material and evaluate the accuracy of the co-oximeter your answer:

D

, Lindsey Jones Practice Exam Qs w/
Explanations
correct answer: D




In this case the patient is presented as asyptomatic. A patient with a COHb level of 24% would

feel dyspnea and present with tachypnea. Therefore, the RRT should evaluate the accuracy of the

lab results, specifically the COHb. When checking accuracy of lab results, one would use quality

control measures.




The infection control department of a small hospital informs the RRT supervisor that the

biological control accompanying some durable autoclaved equipment shows viable spores. The

supervisor should do which of the following with the equipment:




a. incinerate

b. record date and place into service

c. wipe with isopropyl alcohol before use


d. resterilize your answer: D


correct answer: D

, Lindsey Jones Practice Exam Qs w/
Explanations
The presence of viable spores indicates the possibility of living organisms developing in the

sterilized package or on the sterilized equipment. Sterilization suggest the absence of living

organisms, therefore the presence of viable spores indicates the need to resterilize.




A post-op patient is not progressing with sustained maximal inspiratory therapy and refuses to

cough because of pain along the incision site. The RRT should instruct the patient to:




a. pause at the top of each inspiration

b. press a pillow against the incision site when coughing

c. attempt coughing 1 hour after pain medication has been administered


d. avoid coughing until the pain subsides your answer: B


correct answer: B




Explosive coughing by a post-op patient can inadvertently open incision sites. To prevent this,

splinting the site with a pillow is an appropriate option.




Several hours after oral endotracheal extubation of an 8.0-mm tube, and adult patient begins to

demonstrate inspiratory stridor. Which of the following would be most helpful to the patient:

, Lindsey Jones Practice Exam Qs w/
Explanations
a. racemic epinephrine

b. albuterol

c. atropine sulfate


d. heated aerosol by mask your answer: A


correct answer: A




When a patient is extubated and has swelling of the upper airway tissues as demonstrated by

stridor, racemic epinephrine is an appropriate medication to reduce swelling quickly. Another,

less effective option, is to provide a cool mist. In extreme cases, such as marked stridor,

reintubation, or an emergency tracheotomy may be indicated.




An adult patient is receiving mechanical ventilatory support and is being suctioned through the

endotracheal tube at a pressure of -90 mmHg. Secretions have been difficult to remove. What can

be done FIRST to increase suctioning efficiency:




a. increase suction time

b. decrease suction to 80 mmHg

c. increase suction pressure to 100 mmHg


d. increase suction catheter size your answer: C

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