Q. How can I read bifascicular block on an EKG?

Answered by
Dr. Muhammad Zohaib Siddiq
and medically reviewed by Dr. Divya Banu M
Published on May 21, 2019

Hello doctor,

I am wondering if there is any specific thing to look for on an EKG to show bifascicular block? I am trying to learn EKG reading and was wondering if you can help me.

Dr. Muhammad Zohaib Siddiq

Cardiology General Practitioner
#

Hi,

Welcome to icliniq.com.

Look for right bundle branch block and axis deviation. If left anterior or posterior hemi-block is also present, this makes it bifascicular block. If AV block also, this makes trifascicular block. If left anterior and posterior blocks combine, it is called left bundle branch block, if left and right both bundles block, this is called complete heart block and third degree AV block. If you are a medical personnel, it is easy to understand, if layman, then it may take some time to get used to EKG.

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