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diagnosis cardiology ekg electrocardiogram management differential qtc hyperkalemia measurement causes clinical criticalcare interpretation torsadesdepointes treatment cheatsheet digitalis hypokalemia nephrology potassium
Digoxin effect on Electrocardiogram (EKG) Digoxin is a cardiac glycoside from the foxglove leaf Mechanism - Inhibits Na-K
Digoxin effect on ... ) Digoxin is a ... effect on ECG ( ... waves - Short QT ... interval Dr.
Electrocardiographic Features of Digoxin Toxicity • Virtually any arrhythmia is possible. None specific for digoxin toxicity
None specific for digoxin ... Shortening of QT ... interval • "Scooped ... Electrocardiogram #ekg ... #ecg #toxicology
ECG Cheat Sheet ECG rapid view: It is organized roughly how one would typically read an ECG.
ECG Cheat Sheet ... ECG rapid view ... atrial, ventricle), Intervals ... (PR, QRS, QT), ... infarction #ECG
The JT Interval and Pro-Arrhythmic Risk Measured from the J-point to the end of the T-wave, the
The JT Interval ... than prolonged QT ... interval in patients ... pathophysiology #ekg ... #ecg #cardiology
Torsades de Pointes •Precipitated by drugs that prolong the QT interval •Class IA antidysrhythmics (procainamide, quinidine)
that prolong the QT ... interval •Class ... Diagnosis #Cardiology #ECG ... #EKG
QT / QTc Interval Measurement in Irregular Rhythms 2 Approaches: • Measure and calculate the QTc for
QT / QTc Interval ... the associated QT ... the QTc for the QT ... on the EKG, and ... cardiology #diagnosis #ecg
Torsades de Pointes • "Twisting of the pointes" • QRS axis swings from positive to negative direction
Originates from single focus ... that prolong the QT ... interval ... Diagnosis #Cardiology #ECG ... #EKG
EKG Interpretation Cheat Sheet 1) Rate - Regular - Count-Off - Irregular - Count number
Flattened T waves QT ... • QT interval is ... formula: QTC = QT ... thumb: a normal QT ... Interpretation #ECG
Normal QT Interval Measurement General rule: QT interval should be < 1/2 RR interval -
Normal QT Interval ... General rule: QT ... interval should ... cardiology #diagnosis #ecg ... #ekg #electrocardiogram
Checklist Approach to Hypokalemia Consider risk factors for arrhythmia: - EKG changes (especially QT prolongation) - Digoxin
arrhythmia: - EKG ... changes (especially QT ... prolongation) - Digoxin ... their validity (e.g ... clinical context & EKG
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