14 results
Second degree AV Block type II (aka Mobitz II)
 • There is constant PR interval (normal
II) • There is ... constant PR interval (normal ... • The QRS complex ... Type2 #diagnosis #cardiology ... #ecg #ekg #electrocardiogram
Second Degree Heart Block, Mobitz Type II

• p waves are normal 
• QRS complexes are usually
, Mobitz Type II ... • p waves are normal ... • QRS complexes ... HeartBlock #Diagnosis #Cardiology ... #EKG #ECG #Electrocardiogram
Myocarditis
Diagnosis 
• Endomyocardial biopsy (gold standard, rarely performed) 
• Clinical presentation 
• Cardiovascular MRI 
Clinical 
•
• Chest pain, pericarditis ... summation gallop • Abnormal ... ECG, echocardiogram ... Dysrhythmia, heart block ... Diagnosis #Management #Cardiology
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
EKG Interpretation ... Lose P • 3° Complete ... through) QRS Complex ... of depth of QRS complex ... Electrocardiogram #cardiology
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
• The QRS complex ... aka Complete Heart ... rhythm with complete ... atrioventricular #blocks #AVBlock ... #cardiology #ekg
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
amplitude increases (II ... PR interval are normal ... intervening QRS complex ... presence of AV block ... #diagnosis #ekg
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
heart disease Causes ... Bundle branch block ... 300 = NSVT EKG ... (≥ 0.12s) with abnormal ... #differential #cardiology
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Causes of ST Segment ... depression Pericarditis ... ST Elevation of Normal ... voltage Other Causes ... #ecg #ekg #electrocardiogram
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
amplitude increases (II ... PR interval are normal ... intervening QRS complex ... presence of AV block ... #diagnosis #ekg
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
- Normal conduction ... - In most case ... ' wave in lead II ... ECG usually shows ... regular narrow complex