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CCRN Questions Questions and Correct
Answers/ Latest Update / Already Graded
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.
D.
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Reset the ICD.
Ans: 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
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C.
pH 7.40, PaCO2 40 mm Hg, PaO2 62 mm Hg
D.
pH 7.39, PaCO2 30 mm Hg, PaO2 60 mm Hg
Ans: 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.
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Delusion
B.
Hallucination
C.
Illusion
D.
Visual impairment
Ans: 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?
All rights reserved © 2025/ 2026 |
CCRN Questions Questions and Correct
Answers/ Latest Update / Already Graded
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.
D.
All rights reserved © 2025/ 2026 |
, Page |2
Reset the ICD.
Ans: 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
All rights reserved © 2025/ 2026 |
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C.
pH 7.40, PaCO2 40 mm Hg, PaO2 62 mm Hg
D.
pH 7.39, PaCO2 30 mm Hg, PaO2 60 mm Hg
Ans: 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.
All rights reserved © 2025/ 2026 |
, Page |4
Delusion
B.
Hallucination
C.
Illusion
D.
Visual impairment
Ans: 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?
All rights reserved © 2025/ 2026 |
