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
(AV blocks) - ECG ... Second Degree AV ... Second degree AV ... clinically concerning variant ... electrocardiogram #classification
Second degree AV Block type II (aka Mobitz II)
 • There is constant PR interval (normal
Second degree AV ... Block type II ( ... location of the block ... • The QRS complex ... location of the block
Second Degree AV Block Type I aka Mobitz I / Wenckebach 
 • Normal P waves.
Second Degree AV ... Block Type I aka ... group-beating" on the ECG ... #AVBlock #TypeI ... diagnosis #cardiology #ecg
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
PR interval are normal ... encompassing a QRS complex ... intervening QRS complex ... presence of AV block ... #ecg #electrocardiogram
High-grade AV Block aka Advanced AV Block
 • During sinus rhythm, when 2 or more P
High-grade AV Block ... aka Advanced AV Block ... clinically concerning variant ... may progress to complete ... diagnosis #cardiology #ecg
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
PR interval are normal ... encompassing a QRS complex ... intervening QRS complex ... presence of AV block ... #ecg #electrocardiogram