16 results
TCA Overdose on EKG
 • Sinus tachycardia
 • QRS prolongation
 • QT prolongation
 • Rightward deviation
prolongation • QT ... Overdose #tricyclic #antidepressants ... #EKG #ECG #electrocardiogram ... #cardiology #diagnosis ... #clinical #criteria
Tachycardia - Wide vs Narrow Complex, Regular vs Irregular rhythm table

#Diagnosis #Cardiology #EKG #ECG #WideComplex #Narrow
Irregular rhythm table ... #Diagnosis #Cardiology ... #EKG #ECG #WideComplex ... #Irregular #Table ... #Comparison #Differential
Torsades de Pointes 
•Precipitated by drugs that prolong the QT interval 
•Class IA antidysrhythmics (procainamide, quinidine)
that prolong the QT ... flecanide) •Cyclic antidepressants ... TorsadesDePointes #Diagnosis ... #Cardiology #ECG ... #EKG
Lead aVR on EKG
Lead aVR can provide some unique insight into 5 different conditions:

 - Acute
Pericarditis - Tricyclic antidepressant ... overdose - AVRT in narrow ... using the Vereckei criteria ... ) #Diagnosis # ... Cardiology #EKG
Torsades de Pointes
• "Twisting of the pointes" 
• QRS axis swings from positive to negative direction
that prolong the QT ... necanide) Cyclc antidepressants ... TorsadesDePointes #Diagnosis ... #Cardiology #ECG ... #EKG
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 ... #ekg #differential ... #cardiology
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
• ↑ Ca - short QT ... • ↓ Ca - long QT ... • ↓ Mg - long QT ... -500ms) Short QT ... #diagnosis #cardiology
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 ... #EKG #diagnosis ... electrocardiogram #cardiology
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
Tachycardia - Differential ... Diagnosis Table ... Don't rely on criteria ... #Diagnosis #Table ... Irregular #causes #cardiology
Common Medications Known to Prolong QTc
Antiarrhythmics - Amiodarone, sotalol, flecainide, quinidine, dronedarone, dofetilide
Vasopressors/inotropes - Epinephrine, norepinephrine,
Known to Prolong QTc ... aripiprazole Antidepressants ... Medications #Causes #differential ... #diagnosis #pharmacology ... #table