19 results
ECG Interpretation Basics Quick Reference
- Rhythm and Rate
- QRS / Blocks
- Intervals
- Axis
- Chambers
- ST/T/Q (Ischemia)

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ECG Interpretation ... Basics Quick Reference ... - Rhythm and Rate ... #Interpretation ... #Basics #EKG #Electrocardiogram
ECG Cheat Sheet

ECG rapid view: It is organized roughly how one would typically read an ECG.
ECG Cheat Sheet ... doctor: Rate, Rhythm ... #Cribsheet #Electrocardiogram ... Diagnosis #Reference #Interpretation ... #Basics
Wandering atrial pacemaker - ECG Diagnosis
 • The change in P wave contour is gradual
 •
- ECG Diagnosis ... shifts back to the sinus ... • Variant of sinus ... appreciate this rhythm ... #ecg #electrocardiogram
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
is gradual and rhythmic ... presence of AV block ... Wandering Atrial Pacemaker ... several cycle the pacemaker ... #ecg #electrocardiogram
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... arrest - escape rhythms ... - ventricular pacemaker ... bradyarrhythmia #ECG ... #electrocardiogram
Third Degree AV Block aka Complete Heart Block
 • In sinus rhythm with complete AV block,
• In sinus rhythm ... by a junctional pacemaker ... ThirdDegree #3rd #AVBlock ... #ecg #diagnosis ... #electrocardiogram
Hyperkalemia on EKG
"Mild" Hyperkalemia
 • Peaked, narrow-based T Waves
 • Double counting of HR by EKG
QRS widening • Sinus ... of conduction block ... Sinoventricular rhythm ... • "Sine wave" rhythm ... #ECG #electrocardiogram
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
is gradual and rhythmic ... presence of AV block ... Wandering Atrial Pacemaker ... several cycle the pacemaker ... #ecg #electrocardiogram
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
Narrow & regular rhythm ... Narrow & irregular rhythm ... • Treatment: Pacemaker ... #electrocardiogram ... #ecg #cardiology
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
Approach to ECGs ... QRS in 6s x 10 Rhythm ... ) - HiPR: AV block ... #electrocardiogram ... #cardiology #interpretation