19 results
Class I Antiarrhythmics and their Key Pharmacologic Properties

Class IA = Quinidine, Procainamide, Disopyramide ("Quarter PounDer")
Class IB
IC = Flecainide ... in wide QRS on EKG ... channel blockade: IC ... prolonged QT on EKG ... the ERP: IA > IC
Torsades de Pointes 
•Precipitated by drugs that prolong the QT interval 
•Class IA antidysrhythmics (procainamide, quinidine)
QT interval •Class ... quinidine) •Class ... IC antidysrhythmics ... Diagnosis #Cardiology #ECG ... #EKG
Torsades de Pointes
• "Twisting of the pointes" 
• QRS axis swings from positive to negative direction
interval Class ... quridine) Class ... IC antidysrhythmics ... Diagnosis #Cardiology #ECG ... #EKG
Antiarrhythmics - Sodium Channel Blockers
Subclasses, Mechanisms, Indications, Side Effects
la - Quinidine, Procainamide
lb - Lidocaine, Mexiletine
Ic -
Lidocaine, Mexiletine Ic ... Channel #Blockers #ClassI ... #pharmacology #table
Common sodium channel blockers which cause QRS widening.

Anticonvulsants: 
 - Carbamazepine 
Antidysrhythmics:  
 - Group
- Group IA and IC ... QRS #widening #ECG ... #EKG #Pharmacology ... Differential #Drugs #Classes
Pediatric SVT - Management Algorithm
Identify SVT:
 • HR not variable
 • Abrupt rate changes
 • Infants:
SVT - Management Algorithm ... : HR > 180bpm ECG ... Monitors, Pads AP Stable ... 2 J/kg - Dr. ... tachycardia #Management #Algorithm
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
wave to produce classic ... #Hyperkalemia #EKG ... #ECG #Changes # ... Progression #Table
Figure 3 HRCT-LUS correlation in normal lung, pulmonary congestion, rheumatoid lung disease, idiopathic pulmonary fibrosis.
Notes: (A)
extensive ground glass ... extensive ground glass ... B-lines in one IC ... #Correlation #Table
Recurrent Polymorphic VT/Torsades de Pointes - Management Algorithm
Drugs that prolong QT interval:
 • Class 1a (quinidine,
Pointes - Management Algorithm ... interval: • Class ... load: 25-50 mg/kg ... Load: 1-1.5 mg/kg ... TDP #Management #Algorithm
Treatment Algorithm for Active Proliferative Lupus Nephritis (Class III/IV or Mixed Class III/IV + V)
Induction Therapy
Treatment Algorithm ... Lupus Nephritis (Class ... III/IV or Mixed Class ... prednisone 0.5-1 mg/kg ... #Treatment #Algorithm