Demystifying Bundle Branch Blocks, Hemiblocks and Bifascicular Blocks

Author(s): Mixon Michelle H

Contact Hours 1.25

CERP A 1.25

Expires Dec 31, 2024

Topics: Cardiovascular, ECG

Population: Adult

Role: Staff

Member: Free
NonMember: $10.00

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Activity Summary

Required reading for all learners: Implicit Bias impacts patient outcomes

Identifying conduction blocks can seem mysterious. Melt away the mystery as we identify characteristics of right and left bundle branch block (BBB), hemiblocks and bifascicular blocks. The left bundle branch can partially block, leaving a hemiblock. Occasionally, a right BBB and a partial left BBB coexist, leaving a bifascicular block. Defining characteristics, typical causes, pathophysiology and signs your patient requires close monitoring are all explored.


  • Differentiate between right and left bundle branch blocks.
  • Identify left anterior hemiblocks, left posterior hemiblocks, and bifascicular blocks.
  • Discuss conditions, concerns and appropriate interventions when bundle branch blocks, hemiblocks and bifasicular blocks are present.

Continuing Education Disclosure Statement

Successful Completion

Learners must attend/view/read the entire activity, read Implicit Bias impacts patient outcomes, and complete the associated evaluation to be awarded the contact hours or CERP. No partial credit will be awarded.


The American Association of Critical-Care Nurses is accredited as a provider of nursing continuing professional development by the American Nurses Credentialing Center's Commission on Accreditation.

Provider approved by the California Board of Registered Nursing, Provider number CEP 1036, for 1.25 contact hours.

Accreditation refers to recognition of continuing education only and does not imply AACN, ANCC, or CBRN approval or endorsement of any commercial products discussed or displayed in conjunction with this educational activity.


Any relevant relationship between an ineligible company and an individual with the ability to influence clinical content will be identified by the Nurse Planner within the activity. Any relevant relationship between an ineligible company and an individual with the ability to influence clinical content has been mitigated.

AACN programming meets the standards for most states that require mandatory continuing education contact hours for license and/or certification renewal. AACN recommends consulting with your state board of nursing or credentialing organization before submitting CE to fulfill continuing education requirements.

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Continuing Education Activities are nonrefundable.