CCRN Actual Exam Questions With Reviewed 100% Correct Detailed Answers Guaranteed Pass!!Current Update (Verified Pass)

CCRN Actual Exam Questions With Reviewed
100% Correct Detailed Answers

Guaranteed Pass!!Current Update

(Verified Pass)


1. 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 - ANSWER C. Coronary artery spasm


2. 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 - ANSWER C. High sensitivity and
false-positive results


3. Which of the following is the most likely mechanism for atrial tachycardias?
A. Reentry
B. Triggered activity

,C. Accessory pathways

D. Enhanced automaticity - ANSWER A. re-entry


4. 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 - ANSWER C. uncontrolled hypertension


5. 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 - ANSWER B. Increase the milliamperage.


6. Education in peripheral circulation and shifting of the oxyhemoglobin
dissociation curve can affect the accuracy of which of the following?
A. Arterial blood gases
B. Capnography
C. Hemoglobin and hematocrit

D. Pulse oximetry - ANSWER D. Pulse oximetry

,7. Which of the following would not be recommended for diastolic dysfunction?
A. Angiotensin receptor blockers
B. Beta-blockers
C. Inotropes

D. Angiotensin-converting enzyme inhibitors - ANSWER C. inotropes


8. Why does nitroprusside (Nipride) cause tachycardia?
A. Stimulation of cardioacceleratory center
B. Stimulation of alpha receptors
C. Stimulation of baroreceptors

D. Stimulation of renin-angiotensin-aldosterone system - ANSWER C.
Stimulation of baroreceptors


9. Aortic stenosis would elevate which of the following?
A. Left ventricular systolic pressure
B. Pulmonary artery systolic pressure
C. Arterial systolic pressure

D. Arterial diastolic pressure - ANSWER A. Left ventricular systolic pressure


10. Which of the following does not predispose the patient to digitalis toxicity?
A. Hypokalemia
B. Hypercalcemia

, C. Hypomagnesemia

D. Hyponatremia - ANSWER D. Hyponatremia


11. Which of the following types of drugs can cause hypotension, hyperkalemia,
angioedema, proteinuria, and cough?
A. Beta-blockers
B. Loop diuretics
C. Calcium channel blockers

D. Angiotensin-converting enzyme (ACE) inhibitors - ANSWER D. Angiotensin-
converting enzyme (ACE) inhibitors


12. Ashman's phenomenon is most likely to be evident in which of the following
electrocardiogram changes?
A. Second-degree atrioventricular block, type I (Wenckebach)
B. Atrial fibrillation
C. Sinus dysrhythmia

D. Premature ventricular contraction - ANSWER B. A-fib
Ashman's phenomenon is more likely to be evident in rhythms that are irregular;
therefore having more short cycles after long cycles. The most likely rhythm to
demonstrate Ashman's phenomenon is atrial fibrillation because it is irregularly
irregular. Ashman's phenomenon is also evident in early premature atrial
complexes. Again, Ashman's phenomenon occurs when a short cycle follows a
long cycle.


13. Which of the following is a clinical indication of diastolic dysfunction?