8 results
Cannon A Waves of Complete Heart Block on Physical Exam
A patient presented to clinic with lightheadedness
Cannon A Waves of ... is shown on the neck ... a waves”! ... #AWaves #Complete ... #HeartBlock #PhysicalExam
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
Cannon A waves during ... EKG of the same ... a waves are enough ... #Awaves #AVNRT ... #PhysicalExam #JVP
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
Cannon A Waves ... a wave usually ... , it indicates AV ... #AWaves #diagnosis ... #cardiology #CVP
Second Degree Heart Block, Mobitz Type I (Wenckebach)

P waves and QRS complexes are normal but... 
•
Second Degree Heart ... Wenckebach) P waves ... non-conducted P wave ... always within the AV ... #Diagnosis #Cardiology
Second Degree Heart Block, Mobitz Type II

• p waves are normal 
• QRS complexes are usually
Second Degree Heart ... II • p waves ... is below the AV ... #SecondDegree #HeartBlock ... #Diagnosis #Cardiology
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
non-conducted P wave ... Non-conducted P waves ... • Block in AV ... degrees #summary #Diagnosis ... #ecg #cardiology
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
blocks) - ECG Diagnosis ... group-beating" on the ECG ... progress to complete heart ... Heart Block • ... #ecg #diagnosis
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
200 msec) • P wave ... intervals until a P wave ... completely absent, P waves ... #heartblock #cardiology ... #ecg #ekg #diagnosis