Question 1

In the setting of myocardial infarction, a new onset of BBB carries an increased mortality rate.

Accepted Answer

A) True 
 B)False

Question 2

Which lead is probably the best to use when differentiating between right and left BBB?

Accepted Answer

A)   aVR
B)   V1
C)   V4
D)   IIE) A) and C)
F) None of the above

Question 3

List the ECG criteria for bundle branch recognition.

Accepted Answer

ECG Criteria for Bundle Branch Block Rec...

Question 4

Briefly describe how to determine the presence of LVH using the 12-lead ECG.

Accepted Answer

Step 1
• Look at V₁ and determine the dep...

Question 5

What is meant by the phrase terminal force of the QRS complex?

Accepted Answer

The final portion of the QRS complex is ...

Question 6

A complete BBB is characterized by a:

Accepted Answer

A)   QRS measuring 100 to 120 ms.
B)   QRS measuring more than 120 ms.
C)   PR interval measuring more than 200 ms.
D)   QT interval measuring less than 440 ms.E) C) and D)
F) None of the above

Question 7

ECG signs of pericarditis include all of the following EXCEPT:

Accepted Answer

A)   PR segment depression.
B)   notching of the J-point.
C)   R-wave amplitude in V5 that is greater than or equal to 35 mV.
D)   ST-segment elevation that is not strictly grouped into anatomically contiguous leads.E) B) and D)
F) A) and D) C

Question 8

Which of the following statements is TRUE regarding ventricular hypertrophy?

Accepted Answer

A)   Hypertrophy increases the duration of the QRS complex.
B)   Leads I, aVL, V5, and V6 are the best leads to use when looking for ECG evidence of hypertrophy.
C)   ECG evidence of right ventricular hypertrophy is usually more readily evident than LVH.
D)   Hypertrophy increases the QRS amplitude.E) A) and C)
F) C) and D)

Question 9

Patients experiencing ____________ infarctions are most likely to develop BBB.

Accepted Answer

A)   inferior and lateral
B)   anterior and posterior
C)   septal and anteroseptal
D)   inferior and septalE) None of the above
F) C) and D)

Question 10

BBB increases the width of the QRS complex.

Accepted Answer

A) True 
 B)False

Question 11

Benign early repolarization (BER) :

Accepted Answer

A)   is associated with a significant incidence of cardiogenic shock.
B)   produces ST-segment elevation and tall T waves resembling those seen in the hyperacute phase of myocardial infarction.
C)   most often occurs in elderly males.
D)   should be suspected if the J-point is more than 25% of the height of the T-wave apex.E) A) and B)
F) A) and C)

Question 12

Two conditions must exist to suspect BBB. First, the QRS complex must have an abnormal duration (120 ms or more in width) , and second:

Accepted Answer

A)   a slurred upstroke of the QRS complex must exist.
B)   the QRS complex must arise as the result of supraventricular activity.
C)   an RSR' complex must be seen in leads V1-V6.
D)   a QS pattern must be seen in leads I, II, and III.E) B) and C)
F) All of the above

Question 13

List five conditions that can mimic myocardial infarction by producing ST-segment elevation.

Accepted Answer

Examples of conditions that can mimic myocardial infarction by producing ST-segment elevation include LVH, BBB, ventricular rhythms, BER, and pericarditis.

Question 14

A QRS measuring 100 to 120 ms in adults is called a(n) _________________ right or left BBB.

Accepted Answer

incomplete

Question 15

Whenever the two criteria for BBB have been met, and lead V1 displays an RSR' pattern, you should suspect a:

Accepted Answer

A)   left BBB.
B)   right BBB.C) A) and B)
D) undefined

Exam 7: Critical Thinking

In the setting of myocardial infarction, a new onset of BBB carries an increased mortality rate.

Correct Answer
verified

Which lead is probably the best to use when differentiating between right and left BBB?

Correct Answer
verified

List the ECG criteria for bundle branch recognition.

Correct Answer
verified
ECG Criteria for Bundle Branch Block Rec...
View Answer

Briefly describe how to determine the presence of LVH using the 12-lead ECG.

Correct Answer
verified
Step 1
• Look at V₁ and determine the dep...
View Answer

What is meant by the phrase terminal force of the QRS complex?

Correct Answer
verified
The final portion of the QRS complex is ...
View Answer

A complete BBB is characterized by a:

Correct Answer
verified

ECG signs of pericarditis include all of the following EXCEPT:

Correct Answer
verified
C

Which of the following statements is TRUE regarding ventricular hypertrophy?

Correct Answer
verified

Patients experiencing ____________ infarctions are most likely to develop BBB.

Correct Answer
verified

BBB increases the width of the QRS complex.

Correct Answer
verified

Benign early repolarization (BER) :

Correct Answer
verified

Two conditions must exist to suspect BBB. First, the QRS complex must have an abnormal duration (120 ms or more in width) , and second:

Correct Answer
verified

List five conditions that can mimic myocardial infarction by producing ST-segment elevation.

Correct Answer
verified
Examples of conditions that can mimic myocardial infarction by producing ST-segment elevation include LVH, BBB, ventricular rhythms, BER, and pericarditis.

A QRS measuring 100 to 120 ms in adults is called a(n) _________________ right or left BBB.

Correct Answer
verified
incomplete

Whenever the two criteria for BBB have been met, and lead V₁ displays an RSR' pattern, you should suspect a:

Correct Answer
verified

Exam 7: Critical Thinking

In the setting of myocardial infarction, a new onset of BBB carries an increased mortality rate.

Correct AnswerverifiedShow Answer

Which lead is probably the best to use when differentiating between right and left BBB?

Correct AnswerverifiedShow Answer

List the ECG criteria for bundle branch recognition.

Correct AnswerverifiedECG Criteria for Bundle Branch Block Rec...View AnswerShow Answer

Briefly describe how to determine the presence of LVH using the 12-lead ECG.

Correct AnswerverifiedStep 1• Look at V1 and determine the dep...View AnswerShow Answer

What is meant by the phrase terminal force of the QRS complex?

Correct AnswerverifiedThe final portion of the QRS complex is ...View AnswerShow Answer

A complete BBB is characterized by a:

Correct AnswerverifiedShow Answer

ECG signs of pericarditis include all of the following EXCEPT:

Correct AnswerverifiedC

Which of the following statements is TRUE regarding ventricular hypertrophy?

Correct AnswerverifiedShow Answer

Patients experiencing ____________ infarctions are most likely to develop BBB.

Correct AnswerverifiedShow Answer

BBB increases the width of the QRS complex.

Correct AnswerverifiedShow Answer

Benign early repolarization (BER) :

Correct AnswerverifiedShow Answer

Two conditions must exist to suspect BBB. First, the QRS complex must have an abnormal duration (120 ms or more in width) , and second:

Correct AnswerverifiedShow Answer

List five conditions that can mimic myocardial infarction by producing ST-segment elevation.

Correct AnswerverifiedExamples of conditions that can mimic myocardial infarction by producing ST-segment elevation include LVH, BBB, ventricular rhythms, BER, and pericarditis.

A QRS measuring 100 to 120 ms in adults is called a(n) _________________ right or left BBB.

Correct Answerverifiedincomplete

Whenever the two criteria for BBB have been met, and lead V1 displays an RSR' pattern, you should suspect a:

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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ECG Criteria for Bundle Branch Block Rec...
View Answer

Correct Answer
verified
Step 1
• Look at V₁ and determine the dep...
View Answer

Correct Answer
verified
The final portion of the QRS complex is ...
View Answer

Correct Answer
verified

Correct Answer
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C

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified
Examples of conditions that can mimic myocardial infarction by producing ST-segment elevation include LVH, BBB, ventricular rhythms, BER, and pericarditis.

Correct Answer
verified
incomplete

Whenever the two criteria for BBB have been met, and lead V₁ displays an RSR' pattern, you should suspect a:

Correct Answer
verified