Sinus node dysfunction
Sinus bradycardia
Sinus arrest
Tachy-Brady Syndrome (Sick Sinus)
Chronotropic incompetence
AV node dysfunction
1st degree AV block
2nd degree AV block Mobitz I/Wenckebach
2nd degree AV block Mobitz II
3rd degree AV block (complete heart block)
Sinus bradycardia
Sinus arrest
Tachy-Brady Syndrome (Sick Sinus)
Chronotropic incompetence
1st degree AV block
2nd degree AV block Mobitz I/Wenckebach
2nd degree AV block Mobitz II
3rd degree AV block (complete heart block)
ACLS: Bradycardia
Cardiac
PALS: Bradycardia
Inferior MI 
ACLS: Tachycardia
Sick sinus syndrome
PALS: Tachycardia
Neurocardiogenic/reflex-mediated