Obtain EKG and look for:
P waves that appear sooner than expected sinus beat
Ectopic P waves that have different morphology
Interval between normal P waves encompassing the<unk>  is less than twice the existing P-P cycle length (noncompensatory pause)
P waves that appear sooner than expected sinus beat
Ectopic P waves that have different morphology
Interval between normal P waves encompassing the<unk>  is less than twice the existing P-P cycle length (noncompensatory pause)
Rule out underlying conditions:
Chronic heart disease (increases prevalence of<unk> s)
Chronic lung disease (increases prevalence of<unk> s)
Drugs: cocaine, amphetamines, caffeine, nicotine, digoxin
Chronic heart disease (increases prevalence of<unk> s)
Chronic lung disease (increases prevalence of<unk> s)
Drugs: cocaine, amphetamines, caffeine, nicotine, digoxin
Premature atrial contraction
Arrhythmias:
Premature ventricular contraction
Narrow-complex tachycardias
Wandering atrial pacemaker
Wide-complex tachycardias
Premature junctional contraction
AV blocks