4304 results
Second Degree Heart Block, Mobitz Type II

• p waves are normal 
• QRS complexes are usually
II • p waves are ... QRS complexes are ... branch block • PR ... intervals are always ... HeartBlock #Diagnosis #Cardiology
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
• Prolonged PR ... • Prolonged PR ... PR longest before ... PR shorted after ... electrocardiogram #ecg #cardiology
Second Degree Heart Block, Mobitz Type I (Wenckebach)

P waves and QRS complexes are normal but... 
•
QRS complexes are ... • PR interval ... HeartBlock #Diagnosis #Cardiology
Wolff-Parkinson-White Syndrome

WPW is a congenital abnormality characterized by an abnormal accessory conduction pathway between the atria
delta wave, short PR ... msec) 3 Short PR ... interval (PR < ... WolffParkinsonWhite #WPW #Cardiology
Typical ECG changes in acute pericarditis includes: stage 1 - diffuse, positive, ST elevations with reciprocal
Elevation of PR ... depression of PR ... normalization of ST and PR ... Diagnosis #EM #IM #Cardiology
WPW EKG after cardioversion of SVT

Here is the post-conversion ECG

The patient is now in Sinus Rhythm,
The PR interval ... There are tall R ... V3, and there are ... Electrocardiogram #Clinical #Cardiology
Pericarditis on EKG
Stage 1 - Widespread ST elevation (<5mm) and PR depression; In aVR: ST depression
elevation (<5mm) and PR ... depression and PR ... electrocardiogram #cardiology
Early Breast Cancer - Management Algorithm
 • Luminal A-like (ER+ and/or PR+, HER2- and low proliferation)
A-like (ER+ and/or PR ... B-like (ER+ and/or PR ... Triple-negative (ER-, PR
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
rate and prolongs PR ... rate and prolongs PR ... Classification #Classes #cardiology
Type 1 Second-degree AV block, also known as Mobitz I or Wenckebach periodicity, is almost always
prolongation of the PR ... QRS complex, the PR ... Clinical #EM #IM #Cardiology