12 results
Antiarrhythmic Medications - Vaughan Williams Classification - Summary Table
Class I agents - Sodium Channel Blockers⠀
Class II
Vaughan Williams Classification ... - Summary Table ... are beta blockers ... #Medications #Classification ... #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 ... of phase 4 to slow ... 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
Antiarrhythmics Pharmacology Summary ... Vaughan Williams Classification ... 2 - Beta Blockers ... alpha & beta adrenergic ... #Pharmacology #Classification
Pheochromocytoma - Diagnosis and Management Summary
10 percent rule = 10% of pheochromocytomas are extra-adrenal, multiple, bilateral,
and Management Summary ... • Classic triad ... hypotension (may reflect low ... Starting beta blockers ... • Beta blockers
Causes of Hyperkalemia - Intercellular Shift - Differential Diagnosis Algorithm
Transcellular Shift - Appropriate renal excretion (GFR,
Differential Diagnosis Algorithm ... , TTKG, distal flow ... Resistance • Beta ... #Hyperkalemia #IntercellularShift ... Differential #Diagnosis #Algorithm
Causes of Hypokalemia - Differential Diagnosis Algorithm
Decreased intake (rare cause in isolation)
GI loss - Urine loss
Causes of Hypokalemia ... Differential Diagnosis Algorithm ... • Insulin • Beta ... Differential #Diagnosis #Algorithm ... #Causes
Intraoperative  Bradycardia - Guidelines for Crises in Anaesthesia
Bradycardia in theatre should not be treated as
Check fresh gas flow ... Consider known drug causes ... Also consider: high ... toxicity (→ 3-10); beta-blocker ... calcium channel blocker
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