283 results
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
Heart Blocks 1st Degree ... Prolonged PR then Dropped ... longest before dropped ... shorted after dropped ... HeartBlock: • Dropped
Second degree AV Block type II (aka Mobitz II)
 • There is constant PR interval (normal
Second degree AV ... before a P wave is dropped ... #Second #Degree
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
Blocks First Degree ... you have a first degree ... node Second Degree ... ventricular complex) is dropped ... Intermittently dropped
Mobitz Type I (Wenckebach Phenomenon) 2nd Degree AV Block on EKG
 • P-R interval gradually increases
Phenomenon) 2nd Degree ... increases till a dropped ... Wenckebach #Second #Degree
Second Degree Heart Block, Mobitz Type I (Wenckebach)

P waves and QRS complexes are normal but... 
•
Second Degree Heart ... lengthens • Dropped
Type 1 Second-degree AV block, also known as Mobitz I or Wenckebach periodicity, is almost always
Type 1 Second-degree ... wave (i.e., a 'dropped ... After the dropped
Type 1 Second-degree AV block, also known as Mobitz I or Wenckebach periodicity, is almost always
Type 1 Second-degree ... wave (i.e., a 'dropped ... After the dropped
Second Degree Heart Block, Mobitz Type II

• p waves are normal 
• QRS complexes are usually
Second Degree Heart ... • There are dropped
Second Degree AV Block Type I aka Mobitz I / Wenckebach 
 • Normal P waves.
Second Degree AV ... containing the dropped ... #Second #Degree
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
Summary First Degree ... Second Degree AV ... containing the dropped ... Second degree AV ... before a P wave is dropped