Sign-in, or Join our EKG-Essentials plan. Join

Bundle Branch Block Determination II ECG Interpretation #320


Steps 1-3

Changes specifically seen include the QRS complex measuring 0.12 seconds or greater due to this delay. When determining the presence of BBB there are just a few simple steps to follow.

  • Step 1: Refer to lead V1
  • Step 2: Look for evidence that the electrical activity started above the ventricles (P wave). This is sometimes referred to as supraventricular activity.
  • Step 3: QRS complex measures 0.12 seconds or greater (not including aberrant complexes i.e. PVCs)

Steps 1-3 (continued)

By following the previous three steps, you will be able to determine whether a BBB is present or not.

Now it is simply a matter of one more step when analyzing the QRS in V1 to distinguish whether it is a left BBB or a right BBB.




Authors and Sources

Authors and Reviewers


Sources




? v:3 | onAr:0 | onPs:2 | tLb:0 | pv:1
uStat: False | db:0 | cc: | tar: False
| cDbLookup # 0



This website provides professional medical education. For medical care contact your doctor. 2024 ©MedEdu LLC. All Rights Reserved. Terms & Conditions | About Us | Privacy | Email Us | 1

  • mededu company logo
  • facebook like
  • twitter like
  • linkedin like
  • email share
An error has occurred. This application may no longer respond until reloaded. Reload 🗙