Obtain EKG and look for:
Ectopic P waves that have different morphology than the SA node-initiated P waves
P waves may occur before or after QRS
QRS should have similar morphology to SA node-initiated QRS complexes
PJCs may be isolated, occur in trigeminy or bigeminy, or be multifocal.
Rule out underlying disease processes such as digoxin toxicity, heart failure, or myocardial ischemia.
Ectopic P waves that have different morphology than the SA node-initiated P waves
P waves may occur before or after QRS
QRS should have similar morphology to SA node-initiated QRS complexes
PJCs may be isolated, occur in trigeminy or bigeminy, or be multifocal.
Premature junctional contraction
Arrhythmias:
Premature junctional complex
Narrow-complex tachycardias
Premature atrial contraction
Wide-complex tachycardias
Premature ventricular contraction
AV blocks