tachycardia and bradycardia - ✔️ >100 bpm
<60 bpm
Bigeminy - ✔️ every other complex is a PVC
Trigeminy - ✔️ pattern in which every third complex is a premature beat
Premature Junctional Contraction (PJC) - ✔️ Rate: Normal or accelerated
P wave: inverted or absent
QRS: normal
Conduction: normal
rhythm: irregular: PICs occur early in cycle of baseline rhythm
-an ectopic pacemaker in the AV Junction produces PJC's
-may occur in heatlhy or diseased hearts
-if occasional, insignificant
Premature Atrial Contraction (PAC) - ✔️ Heart Rate: Depends on underlying
rhythm
Regularity: Interrupts the regularity of underlying rhythm
P-Wave: can be flattened, notched, or unusual. May be hidden within the T
wave
PRI: measures between .12-.20 seconds and can be prolonged; can be different
from other complexes
QRS: <.12 seconds
Characteristics of Ventricular Tachycardia - ✔️ Wide an bizarre QRS
complex, greater than 100 beats per minute, absent P waves, no PRI, can be
monomorphic or polymorphic
SA node rate - ✔️ 60-100 bpm
AV node rate - ✔️ 40-60 bpm
Prukinje fiber rate - ✔️ 15-40bpm