<unk>  degree AV block may be an incidental finding on an routine ECG. General assessment about signs of underlying cardiac disease including auscultation for murmurs or additional heart sounds, assessment of JVD, peripheral edema, evaluation of skin about cyanosis, clubbing, or other signs of  cardiac disease is warranted.
First degree AV block physical examination
Third degree AV block physical examination
Second degree AV block physical examination
Right bundle branch block physical examination
Supraventricular tachycardia physical examination
Atrial flutter physical examination
Premature atrial contraction physical examination
AVNRT physical examination