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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Second Degree AV Block Type I aka Mobitz I / Wenckebach 
 • Normal P waves.
Second Degree AV ... usually on the second ... There is "group-beating ... #Second #Degree
Premature atrial complex (PAC) - ECG Recognition
 • Prematurity and altered P wave morphology.
 • P
• Prematurity and ... inverted in II, Ill and ... interval of > 0.12 seconds ... which will be 0.12 seconds
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
Second Degree AV ... usually on the second ... There is "group-beating ... Second degree AV ... block, the PP and
Second degree AV Block type II (aka Mobitz II)
 • There is constant PR interval (normal
Second degree AV ... #Second #Degree
Supraventricular Tachycardias - Pathophysiology
Conduction pathways through SA Node, Atrium, AV Node, Bundle of His, and Ventricle
Bundle of His, and
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
with respiration and ... increases (II, Ill and ... change is gradual and ... • The P wave and ... vary at random and
Second degree AV Block 2:1
 • During sinus rhythm, 2 to 1 AV block manifest as
Second degree AV ... is a subtype of second ... could either be second ... #Second #degree ... #2nd #AVBlock #2to1
Normal Sinus Rhythm - ECG Diagnosis
Normal sinus rhythm (NSR) is an impulse that originates in the
in leads I, II and ... variable in leads III and ... positive-negative) in leads V1 and
Wide Complex Tachycardia - ECG Definition and Causes
 • Wide Complex Tachycardia (WCT) is a cardiac
ECG Definition and ... rate > 100 bpm and
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
with respiration and ... increases (II, Ill and ... change is gradual and ... • The P wave and ... vary at random and