7 results
TCA Overdose on EKG
 • Sinus tachycardia
 • QRS prolongation
 • QT prolongation
 • Rightward deviation
• Sinus tachycardia ... prolongation • QT ... Overdose #tricyclic #antidepressants ... #EKG #ECG #electrocardiogram ... #cardiology #diagnosis
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 ... #EKG #Cardiology
Electrocardiographic Features of Digoxin Toxicity
 • Virtually any arrhythmia is possible. None specific for digoxin toxicity
None specific for digoxin ... Shortening of QT ... digitalis #Toxicity #Electrocardiogram ... #ekg #ecg #toxicology ... #cardiology #diagnosis
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
DANGER - Short QT ... : ↑ca - Long QT ... antipsychotics, antidepressants ... #electrocardiogram ... #cardiology #interpretation
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... Tricyclic antidepressant ... widened QRS and QTc ... #electrocardiogram ... #differential #cardiology
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
., long QT syndrome ... Substances • Digoxin ... 300 = NSVT EKG ... Supraventricular tachycardia ... #differential #cardiology
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
and a prolonged QT ... block; and sinus tachycardia ... waves - Short QT ... waves • Short QT ... #ecg #ekg #electrocardiogram