Rhythm Name Rhythm Rate P Wave PRI
Normal Sinus Rhythm Regular 60-100 Normal & Upright 0.12 - 0.20
Sinus Bradycardia Regular 0.20
Irregular underlying rhythm
Progressively
Second Degree AV Block P-P Regular R-R Depends on
Normal & Upright longer until
Type 1 Irregular underlying
dropped
Normal & Upright
Second Degree AV Block Reg if 1:1 Irreg if > Variable usually May be
more P's than
Type 2 2:1 brady prolonged
QRS's
No
P-P Regular R-R P-Normal R-20-40 relationship
Thrid Degree AV Block Normal & Upright
Regular Vent, 40-60 Junct. between P &
QRS
Premature Ventricular Irregular, interupts Depends on
None None
Contraction underlying underlying
Ventricular Tachycardia Regular 150-250 None None
Torsades De Pointes Irregular 150-300 None None
No organized
Ventricular Fibrillation No organized rate None None
rhythm
Escape complex-
Idioventricular Rhythm irreg Escape 15-40 None None
rhythm-reg
Accelerated Idioventricular
Regular 40-100 None None
Rhythm
Ventricular Standstill None None None None
Asystole None None None None
Ventricular Pacemaker
Atrial Pacemaker
AV Sequential Pacemaker
QRS Comments
Originates in SA
0.06 - 0.12
Node
May be normal,
0.06 - 0.12
look for cause
Response for
0.06 - 0.12
needed O2
Common in kids
0.06 - 0.12
and elderly
0.06 - 0.12 Impulse is blocked
Usually followed
0.06 - 0.12
by escape rhythm
0.10 or less
0.10 or less
0.10 or less
0.10 or less
0.10 or less
0.06 - 0.12
0.06 - 0.12
0.06 - 0.12
0.06 - 0.12
0.06 - 0.12
Normal or
"Mobitz I"
absent
Wider than "Mobitz II" or
normal "Classical"
Normal if Treat as Unstable
Junct, wide Brady, "Complete"
if Vent. block
> 0.12 Wide and Bizzare
Sustained 0.12 unsustained>30/se
c
Exacerbated by
> 0.12
antibiotics
Numerous
None
ventricular foci
> 0.12
Ventricular last
wide &
ditch effort to fire
bizzare
> 0.12
wide &
bizzare
None
None no electrical
activity