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Bradycardias Comparison Table
 - SINUS BRADYCARDIA 
 - JUNCTIONAL BRADYCARDIA 
 - 1st DEGREE AV BLOCK
Table - SINUS ... BLOCK - 2nd DEGREE ... AV BLOCK Type 1 ... COMPLETE HEART BLOCK ... #EKG #ECG #Bradycardia
Differences between Mobitz Type I and Type II Second-Degree AV Block

#Mobitz #Wenckebach #TypeI #TypeII #Type1 #Type2
AV Block #Mobitz ... #Type2 #AVBlock ... #SecondDegree #Cardiology ... #Comparison #Electrocardiogram ... #ECG #EKG
Mobitz Type I (Wenckebach Phenomenon) 2nd Degree AV Block on EKG
 • P-R interval gradually increases
Block on EKG ... to 6:5 in this ECG ... #Block #AVBlock ... #diagnosis #cardiology ... #EKG #ECG #Electrocardiogram
Second degree AV Block type II (aka Mobitz II)
 • There is constant PR interval (normal
Block type II ( ... location of the block ... location of the block ... Second #Degree #AVBlock ... #ecg #ekg #electrocardiogram
Almost any type of cardiac arrhythmia is seen in digitalis toxic­ity. However, type II second-degree atrioventricular
) block is not seen ... AV block, ventricular ... of block may be ... The various ECG ... #EKG #ECG #Digoxin
Second Degree Heart Block, Mobitz Type I (Wenckebach)

P waves and QRS complexes are normal but... 
•
Second Degree Heart Block ... beating" • The block ... always within the AV ... HeartBlock #Diagnosis #Cardiology ... #EKG #ECG #Electrocardiogram
Second Degree Heart Block, Mobitz Type II

• p waves are normal 
• QRS complexes are usually
Second Degree Heart Block ... bundle branch block ... beats • The block ... is below the AV ... #EKG #ECG #Electrocardiogram
Second degree AV Block 2:1
 • During sinus rhythm, 2 to 1 AV block manifest as
to 1 AV block manifest ... • A 2:1 AV block ... block type I or ... #2to1 #ecg #diagnosis ... #ekg #electrocardiogram
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
- w/ variable block ... (3) SA node block ... block 1º - long ... block (lower AV ... #EKG #diagnosis
Paroxysmal AV Block on ECG
 - Characterized by an abrupt and persistent AV block in the
Paroxysmal AV Block ... block in the presence ... rhythm - Once the block ... initiated, the block ... #ekg #ecg #electrocardiogram