6018 results
Torsades de Pointes 
•Precipitated by drugs that prolong the QT interval 
•Class IA antidysrhythmics (procainamide, quinidine)
QT interval •Class ... quinidine) •Class ... IC antidysrhythmics ... TorsadesDePointes #Diagnosis
Torsades de Pointes
• "Twisting of the pointes" 
• QRS axis swings from positive to negative direction
interval Class ... quridine) Class ... IC antidysrhythmics ... TorsadesDePointes #Diagnosis
Common sodium channel blockers which cause QRS widening.

Anticonvulsants: 
 - Carbamazepine 
Antidysrhythmics:  
 - Group
- Group IA and IC ... Medications #Toxicology #Diagnosis ... Differential #Drugs #Classes
Class I Antiarrhythmics and their Key Pharmacologic Properties

Class IA = Quinidine, Procainamide, Disopyramide ("Quarter PounDer")
Class IB
Class I Antiarrhythmics ... Properties Class ... IC = Flecainide ... channel blockade: IC ... the ERP: IA > IC
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Classification Class ... I (Ia, Ib, Ic) ... Widens QRS complex Class ... prolongs PR interval Class ... Classification #Classes
Antiarrhythmic Drug Classes 
IA: "Police Department Questions 
IB: Liquored Man 
IC: For Peeing, 
Ill: After Drinking
Antiarrhythmic Drug Classes ... Liquored Man IC ... Lidocaine Mexiletine IC ... Antiarrhythmic #Drug #Classes
Antiarrhythmics - Sodium Channel Blockers
Subclasses, Mechanisms, Indications, Side Effects
la - Quinidine, Procainamide
lb - Lidocaine, Mexiletine
Ic -
Lidocaine, Mexiletine Ic ... Channel #Blockers #ClassI
Antiarrhythmic Drugs

CLASS IA
 • Procainamide, Quinidine, Disopyramide
CLASS 1B
 • Lidocaine, Mexiletine
CLASS 2
 • Propranolol, Esmolol
CLASS 4
Antiarrhythmic Drugs CLASS ... Disopyramide CLASS ... Lidocaine, Mexiletine CLASS ... Propranolol, Esmolol CLASS ... #Medications #Classes
Lupus Nephritis Primer
Class I - Minimal Mesangial
Class II - Mesangial Proliferative
Class Ill - Focal Proliferative
Class IV
Nephritis Primer Class ... Minimal Mesangial Class ... Proliferative Class ... Proliferative Class ... #differential #diagnosis
Antiretroviral Medication Names and 3-Letter Abbreviations by Class

Paul E. Sax, MD

#Antiretroviral #Medication #Names #Classification #HAART #Classes
Abbreviations by Class ... Classification #HAART #Classes