Bundle Branch Block Determination - Course # 320-2
Evidence of Bundle branch block (BBB) may be seen in any lead, but the best view for determining the difference between left and right BBB is lead V1.
Interruption, delay of conduction or a change in the electrical conduction pathway will cause morphologic changes in the QRS complex.
Among those changes seen will include a widening of the QRS complex measuring 0.12 seconds or greater and may include an alteration in the deflection of the ventricular depolarization.
How to use this module.
This module is organized into a series of lessons. These lessons are listed on the right side of the content area. To navigate to a lesson, either
click on the lesson name or use the arrows at the bottom right. Each lesson contains several slides. These slides are lists with tabs
that appear above each slide. To navigate to a slide, either click on the tab or use the gray arrows that appear on the left and right sides of the slides.
Within the lesson are questions. These questions are used to reinforce key concepts, but they are not used for scoring or grading. After
completing this module, we encourage you to use our drills and quizzes to practice what you have learned. Finally, after completing most or all of
the modules, you might try our EKG Graded Quizzes to test your knowledge.
Our affiliated website, Practical Clinical Skills, provides additional drills and quizzes with certifcates of achievement. If you have an account, then your signin name and password will
work on that website as well. Click here for EKG contents and apps at Practical Clinical Skills.
320 Bundle Branch Block Determination - Course # 320-2