EKG Findings Flashcards
1st degree AV block
Long PR interval (>.2s)
No tx needed
2nd degree AV block Mobitz type I: Wenckebach
PR interval lengthens and then QRS complex drops
No tx needed
2nd degree AV block Mobitz type II
PR interval stays the same and QRS complex drops
NEEDS PPM
3rd degree AV block
P wave and QRS complexes are regular but don’t coincide
NEEDS PPM
Atrial Fibrillation
Irregularly irregular heart beat
No P waves, best seen in lead II, irregular
tx anticoagulants and keep HR >110
Multifocal atrial tachycardia
Different P waves morphologies seen in lead II, irregular
NO ANTICOAGULANTS
Atrial tachycardia
Inverted P waves in leads I, aVF; regular and fast
Atrial flutter
Sawtooth pattern
Junctional rhythm
No p waves, or RETROGRADE P waves, normal QRS complex
Mostly asx
Sick Sinus Rhythm
Tachy-brady syndrome AND sinus pauses
NEEDS PPM
PVCs and PACs
Premature P waves (inverted), normal to wide to no QRS complex that will reset on the next beat
Watch for AFib, benign, tx with beta-blockers or ablation
RBBB
Broad, deep, slurred S waves in leads I, aVL, V5-V6 with a normal R wave
Rabbit ears in leaves V1-V2
Generally benign
LBBB
NO Q WAVES
Broad R waves in leads I, V6 with QRS complex >.12s
Small R wave, broad S wave in lead V1
Generally benign
LAFB
LAD, qR in leads I, aVL and rS in leads II, III
LPFB
RAD, rS in lead I, qR in lead III