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Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
(AV blocks) - ECG ... AV block, the PP ... by a junctional pacemaker ... an infra-Hisian pacemaker ... electrocardiogram #classification
Third Degree AV Block aka Complete Heart Block
 • In sinus rhythm with complete AV block,
Third Degree AV Block ... Block • In sinus ... AV block, the PP ... by a junctional pacemaker ... #ekg #ecg #diagnosis
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
1st Degree Heart Block ... Mobitz I Heart Block ... 3rd Degree, Complete ... HeartBlocks #Types #Classification ... electrocardiogram #ecg
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
normal • The PP ... encompassing a QRS complex ... intervening QRS complex ... presence of AV block ... #ecg #electrocardiogram
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
normal • The PP ... encompassing a QRS complex ... intervening QRS complex ... presence of AV block ... #ecg #electrocardiogram
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Pardee's sign" + PPD ... downsloping - Coving ... Bundle Branch Block ... bundle-branch block ... diagnosis #cardiology #ecg