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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The 3 Fates of a Premature Atrial Complex
 • PAC can be conducted with normal QRS
Premature Atrial Complex ... • PAC can be ... • PAC can be ... blocked or non-conducted ... premature #atrial #complexes
Premature atrial complex (PAC) - ECG Recognition
 • Prematurity and altered P wave morphology.
 • P
Premature atrial complex ... (PAC) - ECG Recognition ... • A PAC will ... #PACs #premature ... electrocardiogram #clinical
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
• The QRS complex ... • This is a clinically ... aka Complete Heart ... PAC or PVC, acceleration ... electrocardiogram #classification
Premature Atrial Complexes and Bradycardia

ECG Tip: If there is a sudden onset of (V) bradycardia, check
Premature Atrial Complexes ... premature atrial complexes ... #PACs #bradycardia ... #clinical #cardiology ... Premature #Atrial #Complexes
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 ... electrocardiogram #variants #clinical
Paroxysmal AV Block on ECG
 - Characterized by an abrupt and persistent AV block in the
Paroxysmal AV Block ... persistent AV block ... : conducted or blocked ... PAC or PVC, acceleration ... electrocardiogram #clinical
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 ... electrocardiogram #variants #clinical
High-grade AV Block aka Advanced AV Block
 • During sinus rhythm, when 2 or more P
High-grade AV Block ... aka Advanced AV Block ... high-grade AV block ... • This is a clinically ... may progress to complete