QT Interval Basics

ECG Tags

• & Myocardial Ischemia
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• 1st degree AV Block
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• 3rd degree AV block
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• aberrancy
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• congenital long QT syndrome
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• Crochetage
• Crochetage pattern
• ddx
• DDx for TWIs in V1-V3
• de Winter
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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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• dresslers
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• early repolarization vs/ STEMI
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• ECG Evidence of Reperfusion After Occlusion
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• Epsilon waves
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• extreme axis deviation
• failure to capture
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• Fascicular blocks
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• Foundational Resident
• Fusion Beats
• generic PMVT
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• heart rate
• heart rate and rhythm basics
• heart rate basics
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• High grade AV block
• high grade AV blocks
• high lateral STEMI
• high left ventricular voltages and 'dagger like' Q waves
• high risk pe
• High Voltage
• High-Grade (Advanced AV Block)
• high-risk pulmonary embolism
• Himalayan T-waves
• history of ecg
• History of presenting illness
• HOCM
• Hypeacute T waves
• hyperacute
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• Hypercalcemia
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• Hyperkalemia emergencies
• hyperkalemia mimics
• Hyperkalemia vs. STEMI
• Hyperkalemia vs. VT
• Hyperkalemic paralysis
• Hyperkalemic Periodic Paralysis
• Hyperkalemic Periodic Paralysis (“Impressive Syndrome”)
• Hypermagnesemia
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• hypokalemic periodic paralysis
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• Idioventricular rhythms
• Impressive syndrome
• in-training exam
• inappropriate sinus tachycardia
• incomplete right bundle branch block
• indeterminate axis
• indeterminate QRS axis
• inferior STEMI
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• intermittent
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• intervals
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• inverted P Waves
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• IRBBB
• Irregular rhythm
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• Ischemia
• Ischemic T-waves
• Isoelectric baseline
• Isoelectric segment
• Isoelectric Segment of the ECG
• Isolated Posterior STEMI
• Isorhythmic AV dissociation
• Isorhythmic AVD
• ITE prep
• ITE review
• J point
• J wave
• J-waves
• Jervell
• Jervell and Lange-Nielsen Syndrome
• JLNS
• Josephson Sign
• Josephson’s sign
• 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
• 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
• Marijuana
• 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 lead
• 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
• Narrow complex irregular rhythms
• Narrow complex irregular tachycardia
• 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
• OMI pa
• 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
• orthodromic
• orthodromic SVT
• Osborn waves
• overdose
• p mitrale
• p pulmonale
• p waves
• P.E.
• PAC
• PAC’s
• Paced rhythms
• Pacemaker
• Pacemaker emergencies
• pacemaker malfunction
• Pacer
• palpitations
• Pauses and clumped beats
• PE
• PE vs. STEMI
• peaked P waves
• Pediatric ECG
• Pediatric ECG Interval Table
• Pediatrics
• Pericardial effusion
• Pericardial Tamponade
• 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
• PJCs
• PJTW
• plaque rupture
• plaque vulnerability
• PMVT
• Pokey T wave
• Polymorphic Ventricular Tachycardia
• Polymorphic VT
• Polyuria
• Poor R-wave progression
• post arrest ECG
• post cardiac arrest ECGs
• post-arrest
• Post-Arrest ECG for Dysrhythmias
• Post-Arrest ECG for Ischemia
• Post-arrest NSTE-ACS
• Post-arrest STEMI
• post-cardiac arrest ecg
• post-mi pericarditis
• Post-Thrombolytic Reperfusion ECG Findings
• Posterior MI
• POSTERIOR OMI
• Posterior STEMI
• Posterior STEMI Criteria
• postural orthostatic tachycardia syndrome
• Potpourri
• POTS
• PR interval
• PR segment
• PR segments
• Pre-hospital ECG
• precordial lead misplacement
• precordial swirl
• preexcitation
• preexcitation syndrome
• Preexcitation syndromes
• preexcited af
• preexcited atrial fibrillation
• Pregnancy
• Prehospital ECG
• premature atrial complexes
• Premature beats
• Premature complexes
• premature contractions
• premature junctional complexes
• Prolonged QT
• Prolonged QT interval
• prolonged QTc
• Proper ECG Lead Placement
• 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
• QRS Fragmentation (fQRS)
• QRS morphology
• qrs voltage
• QRS-interval
• QRS-T proportionality
• QT Interval Basics
• 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
• S wave
• S waves
• s5
• SAH
• Salvador Dali
• SANRT
• SCAD
• segments
• Seizure
• Seizures
• Septal STEMI
• Serial ECG
• Serial ECGs
• Severe hypothyroidism
• Sgarbossa
• 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
• Spontaneous Coronary Artery Dissection
• Spontaneous Coronary Artery Dissection (SCAD)
• 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
• stat ecgs
• STD
• STE
• STE differential diagnosis
• STE in aVR
• steeple sign
• Steeple sign in V1
• STEMI
• STEMI Criteria
• STEMI Criteria & STEMI Equivalent Patterns
• 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
• TdP
• Terminal QRS distortion
• Terminal QRS Distortion (OMI Pattern)
• the basics
• The Curriculum
• third degree AV block
• Thrombolytics
• too many P waves
• Top 10 cases of the past 10 years
• Torsades
• Torsades de pointes
• torsades de points
• Toxicologic Emergencies
• Toxicology
• 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
• Vereckei aVR
• 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
• Wolff-Parkinson White (WPW) Syndrome
• 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