44 results
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Vaughan Williams Classification ... • ↑ PR interval ... Duration) - ↑ QT interval ... velocity) - ↑ PR interval ... #Pharmacology #Classification
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... • ↑ PR interval ... Duration) - ↑ QT interval ... (delays time repolarization ... #Pharmacology #Classification
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Vaughan Williams Classification ... and prolongs PR interval ... • Prolongs QT interval ... and prolongs PR interval ... VaughanWilliams #Classification
Internal Jugular Vein Rouleaux Flow on POCUS

Amazing video of a dilated IJV showing Rouleaux flow. Whenever
Internal Jugular ... on POCUS Amazing ... significantly, it causes ... #IJ #Vein #POCUS ... #vascular #clinical
Hypokalemia Differential Diagnosis Algorithm

Low intake 
• poor oral intake 

Renal loss 
• Medication 
• Hypomagnesemia 
•
Differential Diagnosis Algorithm ... Low intake ... Frameworks for Internal ... Differential #Diagnosis #Algorithm ... #Causes #Classification
Parks Classification of Perianal Fistulas
 • Superificial (Simple) - Superficial fistula w/o crossing any sphincter or
Parks Classification ... Fistula tract b/w internal ... Trans-Sphincteric (simple if low ... Fistula tract crosses ... muscle #Parks #Classification
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
- Anorexia GI Losses ... Hypomagnesemia Internal ... Differential #Diagnosis #Low ... Potassium #Table #Classification ... #Causes
An intuitive way to use ultrasound to evaluate sick patients along the peri-shock to full shock
spectrum, based on clinical ... High or Think Low ... #Diagnosis #POCUS ... Evaluation #Protocol #Algorithm ... #Low #Abdomen #
An intuitive way to use ultrasound to evaluate sick patients along the peri-shock to full shock
spectrum, based on clinical ... High or Think Low ... #Diagnosis #POCUS ... Evaluation #Protocol #Algorithm
Causes of Adrenal Insufficiency - Differential Diagnosis Algorithm
Autoimmune:
 • Isolated
 • Polyglandular autoimmune syndrome 1
 •
Differential Diagnosis Algorithm ... Thrombophilia • Critical ... Frameworks for Internal ... Differential #Diagnosis #Algorithm ... #Causes