25 results
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
• Prolonged PR ... Treatment 2nd Degree, Mobitz ... • Prolonged PR ... . 2nd Degree, Mobitz ... HeartBlocks #Types #Classification
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
Placement Indications Class ... • Symptomatic Mobitz ... I or II • Mobitz ... II: • Mobitz II ... arrest, prolonged PR
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Vaughan Williams Classification ... Class I (Ia, Ib ... rate and prolongs PR ... rate and prolongs PR ... VaughanWilliams #Classification
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... depolarization • ↑ PR ... velocity) - ↑ PR ... #Pharmacology #Classification ... #Classes #pathophysiology
Pathophysiology Based Approach to Hyponatremia - Diagnostic Algorithm

Not the "classic" Volume based approach. 

#Hyponatremia #Algorithm #Pathophysiology
Pathophysiology ... Hyponatremia - Diagnostic Algorithm ... Not the "classic ... #Hyponatremia #Algorithm ... #Pathophysiology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Vaughan Williams Classification ... depolarization • ↑ PR ... velocity) - ↑ PR ... #Pharmacology #Classification ... #Classes #pathophysiology
Hemolysis Classification - Intrinsic and Extrinsic Causes

Commentary: Another way to think of immune hemolysis would be
Hemolysis Classification ... and Extrinsic Causes ... autoimmune (most of the causes ... #Hemolysis #Classification ... #Algorithm
Shock - Pathophysiology 
Inadequate tissue perfusion to meet O2, nutrient requirements
1. Distributive Shock
2. Hypovolemic Shock
3. Cardiogenic
Shock - Pathophysiology ... Shock #Shock #Pathophysiology ... differential #diagnosis #algorithm ... #causes
Infographic depicting the main pearls of various types of congenital adrenal hyperplasia for the medical student.
#CAH #algorithm ... #causes #pediatrics ... Endocrinology #Adrenal #pathophysiology
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
PR interval ... Block Type I aka Mobitz ... There is constant PR ... • The PR interval ... electrocardiogram #classification