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Bradycardias Comparison Table
 - SINUS BRADYCARDIA 
 - JUNCTIONAL BRADYCARDIA 
 - 1st DEGREE AV BLOCK
Bradycardias Comparison ... Table - SINUS ... AV BLOCK Type 1 ... HEART BLOCK ... #ECG #Bradycardia
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
encompassing a QRS complex ... intervening QRS complex ... the presence of AV ... block. ... #comparison
Second Degree Heart Block, Mobitz Type II

• p waves are normal 
• QRS complexes are usually
Second Degree Heart ... normal • QRS complexes ... is below the AV ... the His-Purkinje system ... #ECG #Electrocardiogram
Almost any type of cardiac arrhythmia is seen in digitalis toxic­ity. However, type II second-degree atrioventricular
commonly seen are sinus ... bradycardia, first-degree ... AV block, ventricular ... Complete heart block ... #ECG #Digoxin #
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
encompassing a QRS complex ... intervening QRS complex ... the presence of AV ... block. ... #comparison
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
Heart Block • ... conducting system ... #Blocks #heart ... #heartblock #cardiology ... #ecg #ekg #diagnosis
High-grade AV Block aka Advanced AV Block
 • During sinus rhythm, when 2 or more P
High-grade AV Block ... sinus rhythm, when ... may progress to complete ... heart block. ... diagnosis #cardiology #ecg
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
clinically concerning variant ... heart block. ... Block aka Complete ... Heart Block • ... with complete AV
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
interval < 120 ms = AV ... Invert III normal variant ... proportional to heart ... hypokalaemia or bradycardia ... cardiology #diagnosis #system