5 results
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Differential #Diagnosis #Low ... #Potassium #Table ... #Classification
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... Strong Blockade, Slow ... of phase 4 to slow ... repolarization CLASS 3 - Potassium ... #Pharmacology #Classification
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
open leading to slow ... Vaughan Williams Classification ... of phase 4 to slow ... repolarization CLASS 3 - Potassium ... #Pharmacology #Classification
Causes of Hypokalemia
I. Decreased intake
   A. Starvation
   B. Clay ingestion
II. Redistribution into
Increased distal flow ... Increased secretion of potassium ... Differential #Diagnosis #Low ... #Potassium #Classification
Causes of Hyperkalemia
l. Pseudohyperkalemia
  A Cellular efflux; thrombocytosis, erythrocytosis, leukocytosis, in vitro hemolysis
  B.
Drug-associated: heparin, low-molecular-weight ... Diagnosis #High #Potassium ... #Classification