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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Premature atrial complex (PAC) - ECG Recognition
 • Prematurity and altered P wave morphology.
 • P
Premature atrial ... complex (PAC) - ... • Prematurity and ... interval of > 0.12 seconds ... which will be 0.12 seconds
Second degree AV Block type II (aka Mobitz II)
 • There is constant PR interval (normal
Second degree AV ... Block type II ( ... • The QRS complex ... #Second #Degree ... #AVBlock #TypeII
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
Second Degree AV ... usually on the second ... Second degree AV ... • The QRS complex ... atrioventricular #blocks #AVBlock
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
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
with respiration and ... encompassing a QRS complex ... intervening QRS complex ... presence of AV block ... Wandering Atrial
Premature Atrial Complexes and Bradycardia

ECG Tip: If there is a sudden onset of (V) bradycardia, check
Premature Atrial ... Complexes and Bradycardia ... nonconducted premature atrial ... complexes #PACs ... ecg #Premature #Atrial
Third Degree AV Block aka Complete Heart Block
 • In sinus rhythm with complete AV block,
aka Complete Heart ... rhythm with complete ... AV block, the PP ... ThirdDegree #3rd #AVBlock ... #Complete #cardiology
High-grade AV Block aka Advanced AV Block
 • During sinus rhythm, when 2 or more P
High-grade AV Block ... variant of Mobitz II and ... conduction disease and ... may progress to complete ... #Highgrade #AVBlock
Ectopic atrial rhythm
 • The atrial rate is less than 100 bpm.
 • PR interval within
Ectopic atrial rhythm ... • The atrial ... and maybe mistaken ... PRI is < 0.12 seconds ... #Ectopic #atrial
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
with respiration and ... encompassing a QRS complex ... intervening QRS complex ... presence of AV block ... Wandering Atrial