Arrhythmia Flashcards
Normal Sinus Rhythm
60-100bpm
All wave forms present
Normal Sinus Rhythm:
PR = 0.08-.20 QRS <50% of RR
Atrial Rhythm
60-80 bpm
Junctional Rhythm
40-60bpm; no p wave or retrograde P
at the AV node
Ventricular Rhythm
20-40 bpm; no p wave; wide QRS >0.14
Sinus bradycardia
<60 bpm
Junctional bradycardia
<40 bpm
Tachycardia
> 100bpm
accelerated ventricular= 40-100 bpm
accelerated junctional = 60-100bpm
Supraventricular Tachycardia
HR >100bpm
All waves present
Regular R-R
Multifocal Atrial Tachycardia
HR >100bpm Change in foci 3 or more different looking p waves 1:1 P:QRS Change in PR interval
Wandering Atrial Pacemaker
HR < 100bpm Change in foci Different looking p waves 1:1 P:QRS Change in PR interval
Atrial Flutter
Single irritable foci
P:QRS = 2:1 3:1 4:1
P waves at regular intervals
Atrial Fibrillation
Multiple foci
Irregular R-R
Non-discernable p waves
Bag of worms isoelectric line
PAC, PJC, PVC
Uni-focal or multifocal
Three or more PVC’s in a row = non-sustained ventricular tachycardia
Usually due to
Prematurity occurs due to decreased O2 and increased SNS
Can be due to decreased K+ , decreased cardiac output
Ventricular Tachycardia
HR > 100 bpm QRS >0.14 s No p wave T wave opposition V-flutter will demonstrate a more rounded QRS
Torsades de Pointes (t de p)
Short bursts of deflection changes
No p wave wide QRS
T wave opposition
Ventricular Fibrillation
No discernable wave forms
No coordination of activity
Asystole
loss of electrical activity
Agonal
<20 bpm