12 results
Cannon A Waves of Complete Heart Block on Physical Exam
A patient presented to clinic with lightheadedness
Block on Physical ... heart block (2) ... heart block. ... UCSFIMChiefs #CannonA #AWaves ... #Complete #HeartBlock
Second Degree Heart Block, Mobitz Type I (Wenckebach)

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

• p waves are normal 
• QRS complexes are usually
Second Degree Heart Block ... Type II • p waves ... normal • QRS complexes ... #HeartBlock #Diagnosis ... #ECG #Electrocardiogram
Hallmark ECG features of Ventricular Tachycardia (VT)
AV indicates atrioventricular; LAD, left axis deviation; LBBB, left bundle
bundle branch block ... bundle branch block ... ; RWPT, R wave peak ... and WCT, wide complex ... #Ventricular #Tachycardia
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
non-conducted P wave ... Non-conducted P waves ... Pacemaker 3rd Degree, Complete ... #Types #Classification ... #EKG #electrocardiogram
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
• The QRS complex ... may progress to complete ... aka Complete Heart ... rhythm with complete ... #ekg #ecg #diagnosis
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
200 msec) • P wave ... preceding each QRS complex ... (ventricular complex ... Third Degree" • Complete ... #ekg #diagnosis
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
>200ms • 2° Block ... Lose P • 3° Complete ... Block (nothing ... through) QRS Complex ... of depth of QRS complex
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Bundle Branch Block ... precedes the QRS complex ... or in-complete ... bundle-branch block ... #ekg #electrocardiogram
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
Complexes (PVC's ... Bundle branch block ... : • Broad QRS complex ... , and the T-wave ... #Complexes #PVCs