14 results
Electrocardiographic Features of Digoxin Toxicity
 • Virtually any arrhythmia is possible. None specific for digoxin toxicity
Shortening of QT ... interval • "Scooped ... digitalis #Toxicity #Electrocardiogram ... ecg #toxicology #cardiology ... #diagnosis
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
P wave and PR interval ... are normal • The ... PP intervals vary ... #cardiology #diagnosis ... #ekg #ecg #electrocardiogram
Normal QT Interval Measurement
General rule: QT interval should be < 1/2 RR interval
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Normal QT Interval ... Only works at normal ... #Normal #Measurement ... #cardiology #diagnosis ... #ecg #ekg #electrocardiogram
Non-phasic sinus arrhythmia - ECG Diagnosis
• The P wave and PR interval are normal
• The PP
- ECG Diagnosis ... are normal • The ... PP intervals vary ... #cardiology #diagnosis ... #ekg #ecg #electrocardiogram
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Arrhythmias - Differential ... Diagnosis Algorithm ... Escape Rhythm Abnormal ... setting of long QT ... tachyarrhythmias #Cardiology
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
P wave and PR interval ... are normal • The ... PP intervals vary ... #cardiology #diagnosis ... #ekg #ecg #electrocardiogram
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
T Waves: • Normal ... V1 (Invert III normal ... • QT interval is ... Interpretation #ECG #Electrocardiogram ... #cardiology #diagnosis
QT / QTc Interval Measurement in Wide QRS Complex
 - A wide QRS complex will lead
QT / QTc Interval ... is considered abnormal ... Measurement #WideQRS #cardiology ... #diagnosis #ecg ... #ekg #electrocardiogram
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
Intervals - ... : ↑ca - Long QT ... Approach #ECG #EKG #diagnosis ... #electrocardiogram ... #cardiology #interpretation
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
widened QRS and QTc interval ... • Predictor of arrhythmia ... #leadAVR #ecg #electrocardiogram ... #diagnosis #ekg ... #differential #cardiology