sinus arrhythmia
left axis deviation
ventricular escape
premature atrial contraction
low voltage EKG with electrical alternans
right atrial enlargement
dextrocardia
3* AV block with junctional escape rhythm
LA-RA limb lead reversal
left atrial enlargement and premature ventricular contraction
prolonged QTc
right axis deviation
left ventricular hypertrophy
normal EKG for young child (12 day old here): RAE, right axis deviation with tall R waves in V1-V3
Crochetage sign-ASD
right ventricular hypertrophy
Mobitz I 2* AV block (Wenckebach)
LBBB
nonspecific intraventricular conduction delay
1* AV block and right bundle branch block
left anterior fascicular block
3* AV block
Mobitz II 2* AV block
rate-related LBBB
left posterior fascicular block
LBBB with positive Sgarbossa (concordance in aVL)
atrial fibrillation
MAT
tachy-brady syndrome
atrial fibrillation with Ashman phenomenon
AVNRT
ectopic atrial rhythm
atrial flutter
VT-taller left rabbit ear, AV dissociation, fusion complex
ventricular fibrillation
Idiopathic VT-RVOT VT
VT-capture & fusion beats, notched S wave, taller left rabbit ear, R/S <1 in V6
VT-negative concordance, Josephson's sign, RS>60ms
SVT with LBBB
VT-AV dissociation, extreme right axis deviation, positive concordance, RWPT>50ms in II
DeWinter's T Waves
inferior OMI
anterolateral OMI
Wellen's syndrome
posterior OMI
hyperacute T waves
sharkfin OMI
left main coronary occlusion
pathologic Q waves
terminal QRS distortion
poor R wave progression
T wave inversions
QRS fragmentation
ST depression
early repolarization
pericarditis
benign t wave inversion
pulmonary embolism
ventricular aneurysm
intracranial hemorrhage
atrial repolarization
digoxin effect
hyperkalemia
sodium channel blocker toxicity
hypokalemia/hypomagnesemia
hypocalcemia
hyperkalemia
digoxin toxicity
hypercalcemia
digoxin toxicity with bidirectional VT
HOCM
WPW delta wave
ARVC
WPW atrial fibrillation
Brugada syndrome
intermittent oversensing (3rd beat)
pacemaker-mediated tachycardia
failure to capture
undersensing