Bundle Branch Block Determination III ECG Interpretation #320


Step 4

Analyze the terminal portion of the QRS complex. Starting at the ā€œJā€ point go one small box back into the QRS (moving to the left).

  • If the energy is below the isoelectric line, this is a left BBB.
  • If the energy of the depolarization is above the isoelectric line, this is a right BBB.
  • some people refer to a turn signal: down is left, up is right
bbb ecg image step4



Authors and Sources

Authors and Reviewers


Sources




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Reference Guide
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? v:9 | onAr:0 | onPs:2 | tLb:0 | pv:1
uStat: False | db:0 | cc: US
| cDbLookup # 0 | pu: False | pl: System.Collections.Generic.List`1[System.String]
em: | newuser: False | cc: US | showD? False





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