limb lead misplacement
Results:
The Approach to Uncovering Hidden STEMI
A 92-year-old man presents to the emergency department with acute chest pain and diaphoresis. The following ECG is obtained:
Lead Misplacement
Key Points Proper lead placement is critical to avoid misdiagnoses that can adversely affect patient care and records Pay attention to R wave progression and incorporate looking for proper lead…
ECG Basics and Fundamentals: limb lead reversal
A 82-year-old woman presents to the ED “not feeling well”. She reports malaise, mild dyspnea, but denies any pain. Vital signs are normal. The following ECG is obtained on arrival…
ECG Tags
- & Myocardial Ischemia
- 11th Annual UMEM ECG Competition
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- 1st degree AV Block
- 1st degree AVB
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- 3rd degree AV block
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- aberrancy
- Aberrant conduction
- Abnormal ECG
- Abnormal P wave Axis DDx
- absent p waves
- Accelerated idioventricular rhythm
- accelerated junctional rhythm
- Acidosis
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- Acute Chest Pain
- Acute Coronary Syndromes (ACS)
- Acute MI
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- atrial fibrillation with complete heart block
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- atrial flutter 2:1 conduction
- atrial flutter mimics
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- Atrial tachycardia
- Atrifact
- Atrioventricular blocks
- Atrioventricular Blocks (AVB) Summary
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- Crochetage
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- defibrillation
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- Dextrocardia
- differential diagnoses
- differential diagnoses for left axis deviation
- Diffuse ST elevation
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- dig effect
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- DKA
- Dominant R wave
- Dominant R wave in aVR
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- Dysrhythmia
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- Dysrhythmias
- Earliest ECG Evidence of Occlusion MI
- Early cardiac ischemia
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- early signs of cardiac ischemia
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- ecg history
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- Electrolytes
- Elevated intracranial pressure
- Emergent cath lab activation
- EMS
- EMS cases
- Epsilon waves
- escape rhythm
- evolution of ecg
- Evolving STEMI
- extreme axis deviation
- failure to capture
- failure to pace
- failure to sense
- Fascicular blocks
- fever
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- high-risk pulmonary embolism
- Himalayan T-waves
- history of ecg
- History of presenting illness
- HOCM
- Hypeacute T waves
- hyperacute
- Hyperacute T-waves
- Hypercalcemia
- Hyperkalemia
- Hyperkalemia emergencies
- hyperkalemia mimics
- Hyperkalemia vs. STEMI
- Hyperkalemia vs. VT
- Hyperkalemic paralysis
- Hyperkalemic Periodic Paralysis
- Hyperkalemic Periodic Paralysis (“Impressive Syndrome”)
- Hypermagnesemia
- Hypertrophic Cardiomyopathy
- Hypertrophic obstructive cardiomyopathy
- Hypocalcemia
- Hypokalemia
- hypokalemia emergencies
- Hypokalemic paralysis
- hypokalemic periodic paralysis
- Hypomagnesemia
- hyponatremia
- Hypothermia
- Idioventricular rhythms
- Impressive syndrome
- inappropriate sinus tachycardia
- incomplete right bundle branch block
- indeterminate axis
- indeterminate QRS axis
- inferior STEMI
- intermittent
- Intermittent WPW
- intervals
- Intracranial hemorrhage
- Intractable chest pain
- inverted P Waves
- Inverted T Waves
- Inverted U-waves
- IRBBB
- Irregular rhythm
- irregular rhythms
- Ischemia
- Ischemic T-waves
- Isoelectric baseline
- Isoelectric segment
- Isoelectric Segment of the ECG
- Isolated Posterior STEMI
- Isorhythmic AV dissociation
- Isorhythmic AVD
- J point
- J wave
- J-waves
- Jervell
- Jervell and Lange-Nielsen Syndrome
- JLNS
- junctional escape rhythms
- junctional rhythm
- Junctional rhythms
- Junctional Tachycardia
- Juvenile T wave inversions
- Juvenile T waves
- Juvenile T-wave pattern
- kid
- kid ecg
- kids
- killer differentials
- LAD
- LAFB
- Lange
- Large T Wave DDx
- Large T-waves
- LBBB
- LBBB DDx
- lead misplacement
- lead V1
- left anterior fascicular block
- Left axis deviation
- left axis deviation ddx
- left bundle branch block
- left posterior fascicular block
- Left Ventricular Hypertrophy (LVH)
- Left ventricular hypertrophy vs. STEMI
- Lewis lead
- LGL
- life savers
- limb lead misplacement
- Limb lead reversal
- Literature review
- Long QT
- Long QT Interval DDx
- Long QT-interval
- Long QTc
- long ST segment
- Low Voltage
- low voltage differential
- Low voltage QRS
- Low Voltage QRS DDx
- LPFB
- LQT1 (KCNQ1 Mutation)
- LQT2 (KCNH2 Mutation)
- LQT3 (SCN5A Mutation)
- LQTS
- LV Aneurysm
- LV Aneurysm vs. STEMI
- LVAD
- LVAD Dysrhythmias
- LVADs
- LVH
- LVH vs. STEMI
- LVH with strain pattern
- Lyme carditis
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- marijuana toxicity
- Massive STEMI
- MAT
- Mechanisms of ACS
- Metabolic Emergencies
- Methamphetamine Toxicity
- MI
- mimics
- misplaced leads
- Mobitz
- Mobitz conduction
- Mobitz I
- Mobitz I (Wenckebach)
- Mobitz II
- Mobitz II (Hay)
- Mobitz II AV block
- Modified Sgarbossa criteria
- Monomorphic Ventricular Tachycardia
- monomorphic VT
- Multifocal atrial tachycardia
- Myocarditis
- Myxedema
- Na channel blocker toxicity
- narrow & irregular tachycardia
- narrow & regular tachycardia
- Narrow complex and regular rhythms
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- Narrow Complex Regular Tachycardia
- narrow complex regular tachycardia differential
- Narrow Complex Tachycardia
- narrow qrs bradycardia
- New Q Waves
- New RBBB and LAFB
- Nielsen
- Nikelekam T-waves
- No clear P waves DDx
- Non-conducted P wave (P:QRS>1) DDx
- non-conducted PACs
- Non-STE ACS
- Non-sustained Ventricular tachycardia
- Non-sustained VT
- Nonspecific intraventricular conduction delay
- nonsustained ventricular tachycardia
- Nonsustained VT
- normal
- Normal Cardiac Conduction
- Normal ECG
- normal heart rate
- Normal Heart Rate Ranges by Age
- normal lead placement
- normal qrs axis
- Normal R wave progression
- Normal Sinus Rhythm
- Normal STAT ECG
- Normal variant patterns
- normal variant ST elevation
- Normal variants
- Not Enough P Waves (P:QRS < 1) DDx
- Not normal ecg
- NSVT
- Occlusion MI
- Occlusion MI patterns
- OMI
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- OMI Pattern
- OMI Pattern: ST Depression V1-V4
- OMI Patterns in Left Bundle Branch Block
- OMI Patterns in Ventricular Paced Rhythms
- OMI Patterns: STEMI (-) Occlusion MI
- Opiate Toxicity
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- PAC
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- peaked P waves
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- Pediatric ECG Interval Table
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- Pericarditis
- pericarditis vs acs
- Pericarditis vs. STEMI
- Periodic paralysis
- Persistent juvenile T-wave pattern
- PFO
- PGY-2 (Intermediate) Resident Curriculum
- PGY-3 (Advanced) Resident Curriculum
- PGY1 Curriculum
- PJC
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- PJTW
- plaque rupture
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- Pokey T wave
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- Pregnancy
- Prehospital ECG
- premature atrial complexes
- Premature beats
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- premature contractions
- premature junctional complexes
- Prolonged QT
- Prolonged QT interval
- prolonged QTc
- proper lead placement
- proportionality
- PRWP
- Pseudo Wellens
- Pseudo-Wellens waves
- Pseudonormalization of T-waves
- Pulmonary Embolism
- pulmonary hypertension
- Pulse tapping artifact
- pulse-tapping
- PVC
- PVCs
- PVT
- Q-waves
- QRS
- QRS axis
- qrs axis basics
- QRS Complexes
- QRS fragmentation
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- QRS morphology
- qrs voltage
- QRS-interval
- QRS-T proportionality
- R wave basics
- R waves
- R-on-T phenomenon
- R-wave
- R-wave in V1
- R-wave progression
- RAD
- rapid af
- rapid afib
- rapid atrial fibrillation
- rate & rhythm
- RBBB
- Really wide complex tachycardia
- reciprocal changes
- Reflux
- Regular Really Wide Complex Tachycardia
- Regular Rhythm
- Regular Wide Complex Tachycardia
- Regularized atrial fibrillation
- Regularly Irregular Rhythm
- repolarization abnormalities
- Rescue PCI
- Resolved ST segment elevation
- Resources & Recommendations
- Respiratory variation
- Retrograde P waves
- Reverse R wave progression
- Revised Sgarbossa Criteria
- Rhythm
- Rhythm Interpretation
- right atrial enlargement
- Right axis
- Right Axis Deviation
- Right Axis Deviation DDx
- Right bundle branch block
- right heart strain
- Right sided leads
- Right Ventricular (RV) STEMI Criteria
- Right Ventricular Hypertrophy
- Rightward axis
- rollercoaster T waves
- RRWCT
- RV MI
- RV Outflow Tract Tachycardia (RVOT)
- RV STEMI
- rvh
- RVH with strain
- RVMI
- RWCT
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- SANRT
- segments
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- Serial ECG
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- Severe hypothyroidism
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- Sgarbossa Criteria
- Shark fin morphology
- Shark fin STEMI
- Short PR interval
- Short QT
- Short QT interval
- Short QT Syndrome
- Short QTc
- SHS
- sick sinus syndrome
- Sinoatrial Exit Block
- Sinoatrial Nodal Reentry Tachycardia
- Sinoatrial Nodal Reentry Tachycardia (SANRT)
- Sinus arrest
- sinus arrhythmia
- sinus bradycardia
- sinus inversus totalis
- Sinus Node Dysfunction
- sinus rhythm
- Sinus rhythms
- Sinus Tachycardia
- situs inversus
- situs inversus totalis
- Sloof Lirpa Sign
- Slow Atrial fibrillation
- slow ventricular tachycardia
- slow vt
- Sodium channel blocker toxicity
- South Africa
- South Africa sign
- South African
- South African Flag Sign
- spiked
- Spiked Helmet sign
- spiked-helmet
- Spodick Sign
- Spodick’s Sign
- ST
- ST depression
- ST depression V1-V4
- ST Elevation
- ST Elevation DDx
- ST Elevation in aVR DDx
- ST segment elevation
- ST Segment Elevation in aVR with Multi Lead ST Segment Depression
- ST-segment
- ST-segment depression
- stat
- stat ecg
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- STD
- STE
- STE differential diagnosis
- STE in aVR
- STEMI
- STEMI Criteria
- STEMI equivalent
- STEMI equivalents
- STEMI mimics
- STEMI vs. acute pericarditis
- STEMI vs. Early repolarization
- stepwise approach
- strain
- Stress Testing
- Stress tests
- Student Level Curriculum
- Subtle ST elevation
- Subtle ST Segment Elevation (STE)
- Supraventricular tachycardia
- Supraventricular Tachycardia (SVT)
- Sustained VT
- SVT
- synchronization
- Syncop
- Syncope
- syncope ddx
- syncope differentials
- syncope emergencies
- Systematic approach to ECG
- T wave
- T wave inversion differential
- T Wave Inversion in V1-V3 DDx
- T wave inversions in V1-V3
- T wave morphology
- T-wave abnormalities
- T-wave alternans
- T-wave inversion
- T-wave inversions
- T-waves
- Tachycardia
- Takotsubo Cardiomyopathy
- Takotsubo Cardiomyopathy vs. STEMI
- Tall R wave in aVR
- Tall R wave in V1
- Tamponade
- TCA
- TCA overdose
- TCA toxicity
- Terminal QRS distortion
- Terminal QRS Distortion (OMI Pattern)
- the basics
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- Thrombolytics
- too many P waves
- Top 10 cases of the past 10 years
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- torsades de points
- Toxicologic Emergencies
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- TP segment
- Transient STEMI
- Tremor artifact
- trifascicular block
- Trigeminy
- Troponin
- TWI
- Type A Wellens
- Type B Wellens
- U-waves
- Understanding ECG Artifacts
- unifascicular
- unstable bradycardia
- unstable tachyarrhythmia
- unstable tachycardia
- Upright T waves in V1
- V1
- v1-v2 placed too high
- V1/V2
- vasospasm
- Ventricular aneurysm
- Ventricular dysrhythmias
- ventricular escape rhythms
- Ventricular fibrillation
- ventricular fibrillation mimics
- Ventricular Flutter
- Ventricular rhythm
- Ventricular rhythms
- Ventricular Tachycardia
- Ventricular Tachycardia (VT)
- Ventricular tachycardia mimics
- Ventricular tachycardia vs. SVT with aberrant conduction
- Ventricular Tachycardiak
- VF
- voltage
- VT
- VT mimics
- VT vs. SVT with Aberrancy
- w Voltage
- waveforms
- waves
- WCT
- Wellens
- Wellens waves
- Wellens’ syndrome
- Wide & Regular Tachydysrhythmia DDx
- wide complex irregular tachycardia
- Wide complex QRS
- wide complex regular tachycardia
- Wide complex tachycardia
- Wide QRS
- wide qrs bradycardia
- Wide QRS interval
- wide vs. narrow QRS
- Wolff Parkinson White
- WPW
- wpw syndrome
- WPW syndrome and Pseudo-MI patterns
- WPW vs STEMI
- WPW with Antidromic SVT
- WPW with atrial fibrillation
- WPW with Orthodromic SVT
- WPW with SVT
- Young patients
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