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31 Cards in this Set

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Features of Premature Atrial Contraction (PAC).
- p wave looks different than others
- irregular rhythm
- nomal QRS interval
Interpret this ECG.
PAC on 4th beat
- p wave smaller
Interpret the these 2 ECGs.
Top: PAC on 2nd and 6th beat
- different p wave

Bottom: PAC with block on 2nd and 6th beats.
- blocked p wave hidden in the T wave of preceding beat.
- p wave fired during ERP.
Interpret this ECG.
PAC: atrial bigeminy
- 2 beats repeating
- regularly irregular rhythm
- T wave looks different: p wave buried in it
Features of ectopic atrial tachycardia.
- initiated with PAC
- paroxysmal
How is ectopic atrial tachycardia different from sinus tachycardia?
ectopic atrial tachycardia: paroxysmal

sinus tachycardia: HR starts slow, goes up, takes awhile to come back down.
Interpret this ECG.
Atrial tachycardia (SVT)
- HR between 150 and 250
- different p wave
Features of wandering atrial pacemaker (WAP).
Features of multifocal atrial tachycardia (MAT).
- WAP that is fast
Interpret these ECGs.
MAT
- at least 3 different looking p wave
- rate is over 100/min
Features of atrial flutter.
Interpret this ECG.
Atrial flutter 4:1 block
- always even numer block
- saw tooth appearance
Interpret this ECG.
Atrial flutter 2:1 block
- ventricular rate of 150
Features of atrial fibrillation.
- atrial whiggles
- most common in elderly
Interpret this ECG.
Atrial fibrillation
Features of junctional premature contraction (JPC).
- no p wave or
- inverted p wave or
- p wave follows QRS
List three possible p wave shapes in JPC.
Interpret this ECG.
PJC
- inverted p wave
Interpret this ECG.
PJC
- no p wave
Features of junctional escaped beats.
- occur after expected beat
- no p wave
Features of junctional rhythm.
Features of accelerated junctional rhythm.
Features of Premature Ventricular Contraction (PVC).
- wide RR interval: 2x normal
- compensatory pause
Interpret this ECG.
PVC: ventricular bigeminy
Features of ventricular tachycardia.
- lethal
- atria and ventricles beating independently.
Interpret this ECG.
VT
Features of accelerated idioventricular rhythm.
- slow VT
- well tolerated
- rate by purkinje fiber
Features of Torsade de pointes.
- polymorphic VT.
Interpret this ECG.
Torsade de pointes.
Features of ventricular fibrillation.
- no CO
- not compatible with life.
Interpret this ECG.
ventricular fibrillation