33 results
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Classification Class ... Widens QRS complex Class ... • Slows sinus rate ... • Slow sinus rate ... #cardiology #pharmacology
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
0 to decrease rate ... inotropy) ACCP Cardiology ... Vaughan #Williams #Pharmacology ... #pathophysiology ... #cardiology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Antiarrhythmics Pharmacology ... inotropy) ACCP Cardiology ... Antiarrhythmics #Pharmacology ... #pathophysiology ... #phases #cardiology
Hilar enlargement
The table summarizes the causes of hilar enlargement.
Normal hili are:
- Normal in position - left
summarizes the causes ... left higher than right ... vessels #Diagnosis #Radiology ... #CXR #HilarEnlargement
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess Pathophysiology ... degrees • Chills, night ... Blood cultures • CXR ... early disease) • CXR ... #differential #causes
Truncus Arteriosus
 • Basic Information
 • Embryology
 • Associated anomalies
 • Pathophysiology/Presentation
 • Pre-operative management
 •
anomalies • Pathophysiology ... Classification • Classic ... pulmonary vasculature, right ... diagnosis #management #cardiology
Digoxin Pharmacology and Pathophysiology
1) Na/K ATPase Pump - Digoxin works by directly binding to and inhibiting
Digoxin Pharmacology ... and Pathophysiology ... Decreased heart rate ... #Pathophysiology ... #cardiology
Lobar pneumonia
On the chest x-ray there is an ill-defined area of increased density in the right
density in the right ... The right hilus ... include the list of causes ... #Clinical #Radiology ... #CXR #AirBronchogram
Here another patient with free abdominal air.
Notice the very thin regular line which is the diaphragm
impression one might ... this is just some plate-like ... #Clinical #Radiology ... #CXR #Free #Air
Class III Antiarrhythmics - Potassium Channel Blockers - Indications and Side Effects
Amiodarone
 • Suppression of VT
Class III Antiarrhythmics ... a-fib/a-flutter • Rate ... Channel #Blockers #pharmacology ... #cardiology