353 results
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
Torsades de Pointes 
•Precipitated by drugs that prolong the QT interval 
•Class IA antidysrhythmics (procainamide, quinidine)
QT interval •Class ... quinidine) •Class ... IC antidysrhythmics
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
Torsades de Pointes
• "Twisting of the pointes" 
• QRS axis swings from positive to negative direction
interval Class ... quridine) Class ... IC antidysrhythmics
Invasive Candidiasis (IC)

Diagnosis:
Culture:
 • Gold standard, but Slow (~2-3 days), 50% sensitivity
 • Blood Sample
 •
Invasive Candidiasis (IC ... Non-culture-based tests ... • Molecular Tests ... #Candidiasis #IC
Common sodium channel blockers which cause QRS widening.

Anticonvulsants: 
 - Carbamazepine 
Antidysrhythmics:  
 - Group
- Group IA and IC ... Differential #Drugs #Classes
Positive Anterior drawer test video

Test for ACL integrity. Knee at 90 degree pulling tibia forward. (+)
Anterior drawer test ... video Test for ... tibia forward. (+) test ... Anterior #Drawer #Test ... Positive #Clinical #Video
HINTS Exam - Abnormal Head Impulse Test = Peripheral Cause

This video demonstrates:
1) Normal Head Impulse Test
Abnormal Head Impulse Test ... Cause This video ... Normal Head Impulse Test ... Video by Dr. ... PhysicalExam #Clinical #Video