Please enable JavaScript.

Coggle requires JavaScript to display documents.

Av Block - Coggle Diagram

- - - - Beta blockers , CCB , digoxin
  - - - May have low cardiac output and symptoms , esp PR> 0.3 s
        
        If symptomatic and not reversible , 2a indication for perm. pacemaker
- - - - Folowed by dropped qrs
    - - SHORTNENING EASIER TO RECOGNIZE THAN LONGER PR INTERVALS
    - - Mostly narrow
    - - GROUP BEATING and variable RR intervals
        
        CONDUCTION RATIO
        
        4: 3 OR 5: 4 OR 6:5
        
        MEANS NUMBER OF P : NUMBER OF QRS
      - localizing the AV block
        
        narrow qrs
        
        almost always AV nodal
        
        infranodal,level of his, possible rare
        
        assoc. with Acute INFERIOR MI
        
        wide QRS
        
        mostly infranodal , assoc. BBB
        
        Asso. w acute Anterior MI
        
        2nd to structural heart dis.
    - - block at AV node
      - clinical
        
        normal in sleep
        
        2 to inc. vagal tone
        
        also in CCB, BB , digox