8 results
Antiarrhythmic Medications - Vaughan Williams Classification - Summary Table
Class I agents - Sodium Channel Blockers⠀
Class II
- Summary Table ... are beta blockers ... - Potassium Channel ... Blockers Class ... #Summary #Table
Causes of Hyperkalemia - Reduced Excretion - Differential Diagnosis Algorithm

Reduced flow through distal nephron - TTKG
Differential Diagnosis Algorithm ... • ENaC blockers ... nephropathy • Beta ... #Hyperkalemia #IntercellularShift ... Differential #Diagnosis #Algorithm
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... 2 - Beta Blockers ... 3 - Potassium Channel ... alpha & beta adrenergic ... #Pharmacology #Classification
The Diagnostic Approach to Hyperkalemia
Drugs
 - Amiloride
 - Spironolactone
 - Triamterene
 - Trimethoprim
 - Pentamidine
 -
inhibitors Other causes ... transplant - SLE High ... Ketoconazole Low ... - NSAlDs - Beta-Blockers ... #Hyperkalemia #Algorithm
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Vaughan Williams Classification ... 2 - Beta Blockers ... 3 - Potassium Channel ... alpha & beta adrenergic ... #Pharmacology #Classification
Causes of Hyperkalemia
l. Pseudohyperkalemia
  A Cellular efflux; thrombocytosis, erythrocytosis, leukocytosis, in vitro hemolysis
  B.
Beta-Adrenergic ... Drug-associated: heparin, low-molecular-weight ... Differential #Diagnosis #High ... #Potassium #Classification ... #Causes
Pragmatic diagnostic algorithm for hypokalemia. 
***Typical presentations: 
 • Vomiting: urine Na/Cl > 1.6, low urine
Pragmatic diagnostic algorithm ... urine Na/Cl > 1.6, low ... urine Na/Cl < 0.7, high ... correcting serum potassium ... angiotensin receptor blockers
6/02/2022 UPDATE: This assay is designed to detect non-variola orthopoxviruses, including monkeypox virus. It is not
should use this algorithm ... risk of smallpox –low ... specimens from low ... See table below ... RISK CASES immediately