Multiple Choice Questions
1. What is the cause of a heart block dysrhythmia?
A. The ectopic focus originates above the ventricles
B. The electrical current has difficulty traveling down the normal conduction pathway
C. The rhythm originates at the AV junctional tissue, producing retrograde depolarization D.
An ectopic beat that originates in the right or left atria
2. Which of the following statements best describes first degree heart block?
A. The electrical current is delayed or blocked along normal conduction pathways below
the AV junction
B. The electrical current is delayed or blocked along normal conduction pathways in the
ventricles
C. The electrical current is delayed or blocked along normal conduction pathways at or
above the AV junction
D. The electrical current is delayed or blocked along normal conduction pathways above
the SA node
3. Which heart block rhythm has a constant PR interval that measures greater than 0.20
second?
A. First degree AV block
B. Second degree AV block, Mobitz I
C. Second degree AV block, Mobitz II
D. Third degree AV block
4. What is the heart rate range for first degree heart block?
A. 100 to 150 beats per minute
B. 60 to 100 beats per minute
C. 40 to 60 beats per minute
D. 20 to 40 beats per minute
,5. Which heart block dysrhythmia has regular P-P and R-R intervals that both occur at the
same rate?
A. Third degree heart block
B. Second degree heart block, type II
C. Second degree heart block, type I
D. First degree heart block
6. Identify the following rhythm:
A. Third degree AV block
B. Second degree AV block, type I
C. First degree AV block
D. Second degree AV block, type II
7. The observation guidelines used to assess the blood supply to the vital organs of the body
to maintain normal function are called:
A. Cardiac output parameters
B. Cardiac cycle
C. Output display
D. Systemic circulation parameters
8. What symptoms would you observe in a patient with first degree AV block?
A. The patient should be experiencing extreme fatigue and weakness
B. The patient should have normal cardiac output and no symptoms
C. The patient would have a rapid pulse and shortness of breath
D. The patient would be unconscious
9. An impulse that occurs too soon after the preceding impulse, causing a period when no
other impulses can occur in the ventricles, is known as:
A. Loss of capture
,B. Atrial kick
C. Blocked or nonconducted impulse
D. Inhibited impulse
10. Who FIRST discovered the two different types of second degree heart block?
A. Dr. Augusta Waller
B. Sir Thomas Lewis
C. Wilhelm Einthoven
D. Dr. Woldemar Mobitz
11. Which heart blocks are the only blocks with an irregular ventricular response?
A. First degree heart blocks
B. Second degree heart blocks
C. Third degree heart blocks
D. Bundle branch blocks
12. Which of the following heart block dysrhythmias is identified by a repetitious prolonging
PR interval pattern after each blocked QRS complex?
A. Third degree heart block
B. Second degree heart block, type II
C. Second degree heart block, type I
D. First degree heart block
13. Which of the following is a characteristic of P-P intervals in all heart block
dysrhythmias? A. Regular
B. Irregular
C. Absent
D. Unidentifiable
14. Frequent nonconducted QRS complexes are likely to cause signs of:
A. High cardiac output
, B. Low cardiac output
C. Hypertension
D. Edema
15. Second degree heart block, type I is usually due to:
A. Loss of atrial kick
B. Myocardial infarction
C. Pericarditis
D. Inflammation around the AV node
16. With second degree AV block, type I:
A. The PR intervals get progressively shorter
B. Not all of the P waves are followed by a QRS complex
C. The P waves are inverted
D. The rhythm appears to be irregular
17. Identify the following rhythm:
A. Second degree AV block, type II
B. First degree heart block
C. Second degree AV block, type I
D. Third degree AV block
18. Which heart block dysrhythmia is known as the "classical heart block"?
A. First degree heart block
B. Third degree AV block
C. Second degree AV block, type I
D. Second degree AV block, type II
1. What is the cause of a heart block dysrhythmia?
A. The ectopic focus originates above the ventricles
B. The electrical current has difficulty traveling down the normal conduction pathway
C. The rhythm originates at the AV junctional tissue, producing retrograde depolarization D.
An ectopic beat that originates in the right or left atria
2. Which of the following statements best describes first degree heart block?
A. The electrical current is delayed or blocked along normal conduction pathways below
the AV junction
B. The electrical current is delayed or blocked along normal conduction pathways in the
ventricles
C. The electrical current is delayed or blocked along normal conduction pathways at or
above the AV junction
D. The electrical current is delayed or blocked along normal conduction pathways above
the SA node
3. Which heart block rhythm has a constant PR interval that measures greater than 0.20
second?
A. First degree AV block
B. Second degree AV block, Mobitz I
C. Second degree AV block, Mobitz II
D. Third degree AV block
4. What is the heart rate range for first degree heart block?
A. 100 to 150 beats per minute
B. 60 to 100 beats per minute
C. 40 to 60 beats per minute
D. 20 to 40 beats per minute
,5. Which heart block dysrhythmia has regular P-P and R-R intervals that both occur at the
same rate?
A. Third degree heart block
B. Second degree heart block, type II
C. Second degree heart block, type I
D. First degree heart block
6. Identify the following rhythm:
A. Third degree AV block
B. Second degree AV block, type I
C. First degree AV block
D. Second degree AV block, type II
7. The observation guidelines used to assess the blood supply to the vital organs of the body
to maintain normal function are called:
A. Cardiac output parameters
B. Cardiac cycle
C. Output display
D. Systemic circulation parameters
8. What symptoms would you observe in a patient with first degree AV block?
A. The patient should be experiencing extreme fatigue and weakness
B. The patient should have normal cardiac output and no symptoms
C. The patient would have a rapid pulse and shortness of breath
D. The patient would be unconscious
9. An impulse that occurs too soon after the preceding impulse, causing a period when no
other impulses can occur in the ventricles, is known as:
A. Loss of capture
,B. Atrial kick
C. Blocked or nonconducted impulse
D. Inhibited impulse
10. Who FIRST discovered the two different types of second degree heart block?
A. Dr. Augusta Waller
B. Sir Thomas Lewis
C. Wilhelm Einthoven
D. Dr. Woldemar Mobitz
11. Which heart blocks are the only blocks with an irregular ventricular response?
A. First degree heart blocks
B. Second degree heart blocks
C. Third degree heart blocks
D. Bundle branch blocks
12. Which of the following heart block dysrhythmias is identified by a repetitious prolonging
PR interval pattern after each blocked QRS complex?
A. Third degree heart block
B. Second degree heart block, type II
C. Second degree heart block, type I
D. First degree heart block
13. Which of the following is a characteristic of P-P intervals in all heart block
dysrhythmias? A. Regular
B. Irregular
C. Absent
D. Unidentifiable
14. Frequent nonconducted QRS complexes are likely to cause signs of:
A. High cardiac output
, B. Low cardiac output
C. Hypertension
D. Edema
15. Second degree heart block, type I is usually due to:
A. Loss of atrial kick
B. Myocardial infarction
C. Pericarditis
D. Inflammation around the AV node
16. With second degree AV block, type I:
A. The PR intervals get progressively shorter
B. Not all of the P waves are followed by a QRS complex
C. The P waves are inverted
D. The rhythm appears to be irregular
17. Identify the following rhythm:
A. Second degree AV block, type II
B. First degree heart block
C. Second degree AV block, type I
D. Third degree AV block
18. Which heart block dysrhythmia is known as the "classical heart block"?
A. First degree heart block
B. Third degree AV block
C. Second degree AV block, type I
D. Second degree AV block, type II
