77 results
The JT Interval and Pro-Arrhythmic Risk
Measured from the J-point to the end of the T-wave, the
The JT Interval ... T-wave, the JT interval ... than prolonged QT ... #electrocardiogram ... pathophysiology #ekg #ecg #cardiology
QT / QTc Interval Measurement in Irregular Rhythms
2 Approaches:
 • Measure and calculate the QTc for
QT / QTc Interval ... the associated QT ... Irregular #Rhythm #cardiology ... #diagnosis #ecg ... #ekg #electrocardiogram
Normal QT Interval Measurement
General rule: QT interval should be < 1/2 RR interval
   -
Normal QT Interval ... General rule: QT ... #Measurement #cardiology ... #diagnosis #ecg ... #ekg #electrocardiogram
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
ECG Cheat Sheet

ECG rapid view: It is organized roughly how one would typically read an ECG.
atrial, ventricle), Intervals ... (PR, QRS, QT), ... Cheatsheet #Cribsheet #Electrocardiogram ... #Diagnosis #Reference
Torsades de Pointes (TdP): Pathogenesis and Clinical Findings

Polymorphic ventricular tachycardia initiated by PVC in the setting
the setting of QT ... interval prolongation ... dePointes #TdP #Diagnosis ... pathophysiology #cardiology ... #causes #differential
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
Digoxin effect on Electrocardiogram ... waves - Short QT ... interval Dr. ... Digoxin #effect #Electrocardiogram ... #EKG #Cardiology
Torsades de Pointes 
•Precipitated by drugs that prolong the QT interval 
•Class IA antidysrhythmics (procainamide, quinidine)
that prolong the QT ... interval •Class ... TorsadesDePointes #Diagnosis ... #Cardiology #ECG
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
• ↑ Ca - short QT ... • ↓ Ca - long QT ... EKG #Checklist #diagnosis ... #cardiology #electrocardiogram ... #differential
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Arrhythmias - Differential ... Diagnosis Algorithm ... setting of long QT ... #Differential # ... Diagnosis #Algorithm