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

ECG rapid view: It is organized roughly how one would typically read an ECG.
EKG cheat sheet ... , Hypertrophy (atrial ... , ventricle), Intervals ... (PR, QRS, QT), ... Electrocardiogram #Diagnosis
Electrocardiographic Features of Digoxin Toxicity
 • Virtually any arrhythmia is possible. None specific for digoxin toxicity
Shortening of QT ... interval • "Scooped ... Electrocardiogram #ekg ... #ecg #toxicology ... #cardiology #diagnosis
QT / QTc Interval Measurement in Wide QRS Complex
 - A wide QRS complex will lead
QT / QTc Interval ... increase in the QT ... #QTc #Interval ... #diagnosis #ecg ... #ekg #electrocardiogram
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
EKG Interpretation ... (e.g. ectopic atrial ... /QTC Interval: ... • QT interval is ... Interpretation #ECG
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 ... #EKG
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
Electrocardiogram (EKG ... Digoxin effect on ECG ... waves - Short QT ... Electrocardiogram #EKG ... #ECG
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
P wave and PR interval ... • The P to P interval ... Wandering Atrial ... #cardiology #diagnosis ... #ekg #ecg #electrocardiogram