Lead II

 

12-Lead

 

Interpretation Rules

  • A junctional rhythm with a rate of <40 bpm.
  • QRS complexes are typically narrow (< 120 ms).
  • P wave may be present before, during (hidden) or after QRS, if visible it is inverted
  • AV dissociation may be present with the ventricular rate usually greater than the atrial rate.