Bundle Branch Block Quiz Part 6
Identify the following bundle branch blocks.
1.
2.
4.
5.
6.
7.
Answers
1.
Monophasic R waves are present in I, V5, and V6 with a deep S wave in V1.
2.
The R waves in V5 and V6 are characteristic of a left bundle branch block.
3.
The broad R waves in V5 and V6 are indicative of a left bundle branch block. In V1, there is a notched S wave followed by ST elevation in the opposite direction of the terminal down stroke.
4.
In V6 there is a monophasic R wave and in V1 there is a small R wave followed by a deep S wave. Both are characteristic of a left bundle branch block
5.
The RSR pattern in V1 is indicative of a right bundle branch block.
6.
In V1 the the QRS complex has a "rabbit ear" appearance that is characteristic of a right bundle branch block.
7.
The QRS complex in V1 reveals a right bundle branch block
1.
3.
Answers
1.
|
| Left bundle branch block |
Monophasic R waves are present in I, V5, and V6 with a deep S wave in V1.
2.
|
| Left bundle branch block |
The R waves in V5 and V6 are characteristic of a left bundle branch block.
3.
 |
| Left bundle branch block |
The broad R waves in V5 and V6 are indicative of a left bundle branch block. In V1, there is a notched S wave followed by ST elevation in the opposite direction of the terminal down stroke.
4.
In V6 there is a monophasic R wave and in V1 there is a small R wave followed by a deep S wave. Both are characteristic of a left bundle branch block
5.
|
| Right bundle branch block |
The RSR pattern in V1 is indicative of a right bundle branch block.
6.
|
| Right bundle branch block |
7.
|
| Right bundle branch block |
The QRS complex in V1 reveals a right bundle branch block
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