CCRN CERTIFICATION EXAM ACTUAL
EXAM & PRACTICE EXAM QUESTIONS
AND DETAILED CORRECT ANSWERS |
A+ STUDYGUIDE 2025
A 57-year-old man was admitted to the critical care unit
with a diagnosis of anteroseptal MI. A PA catheter was
inserted, and initial readings were within normal limits. BP
140/92, HR 110 and regular, RR 24. Breath sounds equal
and clear. 3 hrs after admission, the pt becomes restless
with cool, pale skin. Now BP 110/72, HR 120, RR 28 and
labored. Crackles are audible at the lung bases BL. The
patient is given furosemide (Lasix) at 8 am. At 9 am, the
PAOP drops to 8, with a drop in BP. Which of the following
would be the most appropriate intervention at this time?
A. Administer saline bolus.
B. Decrease dobutamine drip rate.
C. Increase nitroglycerin drip rate.
D. Replace potassium. Correct Answer A. Administer
saline bolus.
What type of AV block is characterized by a progressive
prolongation of the PR interval followed by a
nonconducted P wave?
A. First-degree AV block
B. Second-degree AV block, type I
,C. Second-degree AV block, type II
D. Third-degree AV block Correct Answer B.
Second-degree AV block, type I
A premature P wave buried in the T wave before a run of
wide QRS complex tachycardia indicates that the wide
QRS complex tachycardia is most likely which of the
following?
A. Supraventricular tachycardia with aberrancy
B. Ventricular tachycardia
C. Bundle branch block
D. Wolff-Parkinson-White syndrome Correct Answer A.
Supraventricular tachycardia with aberrancy
Which of the following drugs are used for first-line therapy
for chronic management of hypertension?
A. ACE inhibitors and vasodilators
B. Vasodilators and beta-blockers
C. Diuretics and beta-blockers
D. Diuretics and ACE inhibitors Correct Answer C.
Diuretics and beta-blockers
A 61-year-old man is admitted to the critical care unit from
the cath lab. He has just had a PCI and stent insertion to
the RCA. His leg is immobilized, and the HOB 30 degrees.
Six hours later the patient is restless and complaining of
back pain. The femoral sheath is intact in the right femoral
area, and there is no evidence of bleeding or hematoma.
Neck veins are flat with the HOB 30 degrees, and heart
,sounds are normal. Vital signs are BP 80/50, HR 120, and
RR 24. Which of the following is the priority issue for
patient education for this patient?
A. The need for lifestyle changes to decelerate the
atherosclerotic process
B. To avoid magnetic resonance imaging
C. The need for taking a platelet aggregation inhibitor
daily
D. How to take nitroglycerin Correct Answer C. The need
for taking a platelet aggregation inhibitor daily
Unstable angina that presents as pain at rest is likely to be
due to progression of CAD or which of the following?
A. Dysrhythmias
B. Hypertension
C. Coronary artery spasm
D. Anxiety Correct Answer C. Coronary artery spasm
Which of the following is the major disadvantage of the
use of serum myoglobin for the diagnosis of an acute MI?
A. Low specificity and false-positive results
B. High specificity and false-negative results
C. High sensitivity and false-positive results
D. Low sensitivity and false-negative results Correct
Answer C. High sensitivity and false-positive results
Which of the following is the most likely mechanism for
atrial tachycardias?
, A. Reentry
B. Triggered activity
C. Accessory pathways
D. Enhanced automaticity Correct Answer A. re-entry
Which of the following would be a contraindication to the
use of fibrinolytic drugs, such as recombinant tissue
plasminogen activator?
A. Hypotension
B. Heart block
C. Uncontrolled hypertension
D. Pain lasting more than 6 hours Correct Answer C.
uncontrolled hypertension
A patient returns to the critical care unit after insertion of a
transvenous pacemaker. There are pacing spikes not
followed by a QRS. Which of the following is a method to
facilitate capture during pacing?
A. Increase the pacing rate.
B. Increase the milliamperage.
C. Suppress the competitive rhythm.
D. Increase the sensitivity Correct Answer B. Increase the
milliamperage.
eduction in peripheral circulation and shifting of the
oxyhemoglobin dissociation curve can affect the accuracy
of which of the following?
EXAM & PRACTICE EXAM QUESTIONS
AND DETAILED CORRECT ANSWERS |
A+ STUDYGUIDE 2025
A 57-year-old man was admitted to the critical care unit
with a diagnosis of anteroseptal MI. A PA catheter was
inserted, and initial readings were within normal limits. BP
140/92, HR 110 and regular, RR 24. Breath sounds equal
and clear. 3 hrs after admission, the pt becomes restless
with cool, pale skin. Now BP 110/72, HR 120, RR 28 and
labored. Crackles are audible at the lung bases BL. The
patient is given furosemide (Lasix) at 8 am. At 9 am, the
PAOP drops to 8, with a drop in BP. Which of the following
would be the most appropriate intervention at this time?
A. Administer saline bolus.
B. Decrease dobutamine drip rate.
C. Increase nitroglycerin drip rate.
D. Replace potassium. Correct Answer A. Administer
saline bolus.
What type of AV block is characterized by a progressive
prolongation of the PR interval followed by a
nonconducted P wave?
A. First-degree AV block
B. Second-degree AV block, type I
,C. Second-degree AV block, type II
D. Third-degree AV block Correct Answer B.
Second-degree AV block, type I
A premature P wave buried in the T wave before a run of
wide QRS complex tachycardia indicates that the wide
QRS complex tachycardia is most likely which of the
following?
A. Supraventricular tachycardia with aberrancy
B. Ventricular tachycardia
C. Bundle branch block
D. Wolff-Parkinson-White syndrome Correct Answer A.
Supraventricular tachycardia with aberrancy
Which of the following drugs are used for first-line therapy
for chronic management of hypertension?
A. ACE inhibitors and vasodilators
B. Vasodilators and beta-blockers
C. Diuretics and beta-blockers
D. Diuretics and ACE inhibitors Correct Answer C.
Diuretics and beta-blockers
A 61-year-old man is admitted to the critical care unit from
the cath lab. He has just had a PCI and stent insertion to
the RCA. His leg is immobilized, and the HOB 30 degrees.
Six hours later the patient is restless and complaining of
back pain. The femoral sheath is intact in the right femoral
area, and there is no evidence of bleeding or hematoma.
Neck veins are flat with the HOB 30 degrees, and heart
,sounds are normal. Vital signs are BP 80/50, HR 120, and
RR 24. Which of the following is the priority issue for
patient education for this patient?
A. The need for lifestyle changes to decelerate the
atherosclerotic process
B. To avoid magnetic resonance imaging
C. The need for taking a platelet aggregation inhibitor
daily
D. How to take nitroglycerin Correct Answer C. The need
for taking a platelet aggregation inhibitor daily
Unstable angina that presents as pain at rest is likely to be
due to progression of CAD or which of the following?
A. Dysrhythmias
B. Hypertension
C. Coronary artery spasm
D. Anxiety Correct Answer C. Coronary artery spasm
Which of the following is the major disadvantage of the
use of serum myoglobin for the diagnosis of an acute MI?
A. Low specificity and false-positive results
B. High specificity and false-negative results
C. High sensitivity and false-positive results
D. Low sensitivity and false-negative results Correct
Answer C. High sensitivity and false-positive results
Which of the following is the most likely mechanism for
atrial tachycardias?
, A. Reentry
B. Triggered activity
C. Accessory pathways
D. Enhanced automaticity Correct Answer A. re-entry
Which of the following would be a contraindication to the
use of fibrinolytic drugs, such as recombinant tissue
plasminogen activator?
A. Hypotension
B. Heart block
C. Uncontrolled hypertension
D. Pain lasting more than 6 hours Correct Answer C.
uncontrolled hypertension
A patient returns to the critical care unit after insertion of a
transvenous pacemaker. There are pacing spikes not
followed by a QRS. Which of the following is a method to
facilitate capture during pacing?
A. Increase the pacing rate.
B. Increase the milliamperage.
C. Suppress the competitive rhythm.
D. Increase the sensitivity Correct Answer B. Increase the
milliamperage.
eduction in peripheral circulation and shifting of the
oxyhemoglobin dissociation curve can affect the accuracy
of which of the following?
