11 results
Classic Digoxin-Associated Arrhythmias
 • Atrial fibrillation with an unusually slow ventricular response
 • Atrial Fibrillation with
Fibrillation with Complete ... Heart Block and ... Tachycardia with 2:1 ... AV Block • Bidirectional ... #diagnosis #cardiology
Almost any type of cardiac arrhythmia is seen in digitalis toxic­ity. However, type II second-degree atrioventricular
type of cardiac arrhythmia ... The arrhythmias ... Complete heart block ... , sino-atrial (SA ... #Diagnosis #Cardiology
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
1 AV conduction ... Heart Block • ... independently of the atria ... #Blocks #heart ... #ecg #ekg #diagnosis
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
intervening QRS complex ... the presence of AV ... Wandering Atrial ... #cardiology #diagnosis ... #ekg #ecg #electrocardiogram
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
intervening QRS complex ... the presence of AV ... Wandering Atrial ... #cardiology #diagnosis ... #ekg #ecg #electrocardiogram
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
Hypokalemia • Bundle ... classified as: • Low: <1 ... Intermediate burden: >1 ... capture of the atria ... • Atrial fibrillation
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
or 3:1 block) ... Pacemaker 3rd Degree, Complete ... P and QRS • Atrial ... • Block in AV ... #cardiology
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
Cheat Sheet 1) ... interval < 120 ms = AV ... (e.g. ectopic atrial ... proportional to heart ... Interpretation #ECG
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... 1. ... events in-hospital. heart ... • Predictor of arrhythmia ... tachycardia • Narrow complex
Atrial Fibrillation (A-Fib) Summary

Symptoms:
• Palpitations, light-headedness, dizziness, dyspnea, exercise intolerance, chest pain, near-syncope, syncope.

Why?
Cardiac:
	• Valvular heart
Common Sustained Arrhythmia ... Irregular wide-complex ... tachycardia: bundle ... Cardioversion 1. ... diagnosis #management #cardiology