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CCRN Questions with correct answers updated 2025
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Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024 Copyright ©Stuvia International BV Page 2/66 D. Reset the ICD. - ANSWER-Defibrillate A 28-year-old woman is admitted to the critical care unit from the emergency department with a diagnosis of asthm...

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  • November 3, 2024
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  • 2024/2025
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  • ccrn questions with correct answers updated 2025

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Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024




CCRN Questions with correct answers

updated 2025


A patient has had a large anterior myocardial infarction last month and developed a ventricular

aneurysm. He now has episodes of ventricular tachycardia that are not prevented or converted with

antidysrhythmic agents. An implantable cardioverter-defibrillator (ICD) is implanted. Four days after

surgery he develops ventricular tachycardia. The ICD has delivered three shocks but has not converted

the rhythm. He is pulseless and apneic. Cardiopulmonary resuscitation is in progress. What is the priority

action now?




A.


Administer epinephrine IV.




B.


Administer amiodarone.




C.


Defibrillate.




Copyright ©Stuvia International BV 2010-2024 Page 1/66

,Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024


D.


Reset the ICD. - ANSWER✔✔-Defibrillate


A 28-year-old woman is admitted to the critical care unit from the emergency department with a

diagnosis of asthma. Her initial arterial blood gases on a 28% Venturi mask are as follows:




pH 7.48


PaCO2 30 mm Hg


HCO3 24 mEq/L


PaO2 64 mm Hg




Which of the following repeat arterial blood gases on 40% oxygen indicate that the patient's condition is

worsening?




A.


pH 7.48, PaCO2 30 mm Hg, PaO2 68 mm Hg




B.


pH 7.46, PaCO2 32 mm Hg, PaO2 61 mm Hg




Copyright ©Stuvia International BV 2010-2024 Page 2/66

,Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024


C.


pH 7.40, PaCO2 40 mm Hg, PaO2 62 mm Hg




D.


pH 7.39, PaCO2 30 mm Hg, PaO2 60 mm Hg - ANSWER✔✔-C.


pH 7.40, PaCO2 40 mm Hg, PaO2 62 mm Hg




The case study shows stage II asthma. Option c shows stage III asthma. The patient is still breathing at a

fast rate, but carbon dioxide is starting to be retained as evidenced by the increase of the PaCO2 into

normal range. Options a and b are still stage II. Option d shows a respiratory alkalosis with a metabolic

acidosis because you would have expected the pH to be in an alkalotic range with the PaCO2 of 30.


A patient experiencing alcohol withdrawal syndrome describes the swirls in the wallpaper as being

worms. This is an example of which of the following?




A.


Delusion




B.


Hallucination




Copyright ©Stuvia International BV 2010-2024 Page 3/66

, Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024


C.


Illusion




D.


Visual impairment - ANSWER✔✔-C.


Illusion




An illusion is a misperception or misinterpretation of an actual external stimulus. Illusions and

hallucinations (a perception that has no actual external stimulus) are common during alcohol withdrawal

syndrome.


A patient arrives in the emergency department with multiple gunshot wounds. He requires massive

transfusion for blood loss from chest and abdominal wounds. The electrocardiogram should be observed

closely for changes indicative of which of the following?




A.


Atrioventricular block




B.


Hyperkalemia




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