Dr. Arnel Carmona @ecgrhythms
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Internal Medicine (IMG) , lover of the squiggly lines and all simplistic learning https://twitter.com/ecgrhythms - blogger @ - https://www.ekgrhythm.com/
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Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
Summary First Degree ... Second Degree AV ... Second degree AV ... Third Degree AV ... Block aka Complete
Second degree AV Block type II (aka Mobitz II)
 • There is constant PR interval (normal
Block type II ( ... location of the block ... • The QRS complex ... location of the block ... #AVBlock #TypeII
Ventricular Tachycardia in Wide Complex Tachycardia - Telemetry Diagnosis
 • Lead V1 - LBBB Criteria
 •
Tachycardia in Wide Complex ... Tachycardia - Telemetry ... aVR - Vereckie Algorithm ... #Algorithm # ... cardiology #ekg #ecg #telemetry
Second degree AV Block 2:1
 • During sinus rhythm, 2 to 1 AV block manifest as
Block 2:1 • During ... AV block ... • A 2:1 AV block ... AV block type I ... #2nd #AVBlock #2to1
Second Degree AV Block Type I aka Mobitz I / Wenckebach 
 • Normal P waves.
Second Degree AV ... Block Type I aka ... #Second #Degree ... #AVBlock #TypeI
Third Degree AV Block aka Complete Heart Block
 • In sinus rhythm with complete AV block,
Third Degree AV ... Block aka Complete ... Heart Block • ... AV block, the PP ... ThirdDegree #3rd #AVBlock
First Degree AV Block
 • The P wave is normal in morphology.
 • PR interval greater
First Degree AV ... Block • The P ... bundle branch block ... #First #Degree # ... AVBlock #1st #ecg
High-grade AV Block aka Advanced AV Block
 • During sinus rhythm, when 2 or more P
High-grade AV Block ... aka Advanced AV Block ... may progress to complete ... heart block. ... #Highgrade #AVBlock
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
encompassing a QRS complex ... intervening QRS complex ... presence of AV block
Sinoatrial Block (SAB) Type I - (2nd Degree Mobitz Type I)

#cardiology #diagnosis #ekg #ecg #electrocardiogram #heartblock
Sinoatrial Block ... Type I - (2nd Degree