22 results
Antiarrhythmic Drugs

CLASS IA
 • Procainamide, Quinidine, Disopyramide
CLASS 1B
 • Lidocaine, Mexiletine
CLASS 2
 • Propranolol, Esmolol
CLASS 4
Adenosine, Magnesium, Potassium ... Medications #Classes #Classification ... #Pharmacology #
Mechanisms of Drug-Induced Hyperkalemia 
 • Direct renin inhibitor (Aliskiren)
 • Renin release inhibition (NSAIDs, Beta-Blockers)
Hyperkalemia • Direct renin ... Aliskiren) • Renin ... #hyperkalemia #differential ... pathophysiology #pharmacology ... #potassium #medications
Hyperkalemia: Diagnostic algorithm
Decreased renal potassium excretion
 • Acute renal failure
 • Chronic renal failure
 • Drugs
Increased
Decreased renal potassium ... Drugs Increased potassium ... Diabetic Nephropathy Renin ... Normal, Renin High ... #differential
Antiarrhythmic Medications - Vaughan Williams Classification - Summary Table
Class I agents - Sodium Channel Blockers⠀
Class II
Vaughan Williams Classification ... Class III agents - Potassium ... #Medications #Classification ... Summary #Table #pharmacology
Drugs that Impair Renal Potassium Excretion 

Decreased ENaC channel function: Amiloride, Triamterene, Pentamidine
Decreased Aldosterone Synthesis: Heparin,
that Impair Renal Potassium ... ARBs Decreased Renin ... Pathophysiology #Pharmacology ... #Impaired #Potassium
Here’s a review of the Renin-Angiotensin-Aldosterone system (RAAS)

This is a very common pathway that clinicians should
review of the Renin-Angiotensin-Aldosterone ... with excreting potassium ... will increase potassium ... ReninAngiotensinAldosteroneSystem #RAAS #Pharmacology ... #Renin #Angiotensin
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Hypokalemia - Differential ... #Hypokalemia #Differential ... Diagnosis #Low #Potassium ... #Table #Classification
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
treated with IV potassium ... Pressure: - ↑ Renin ... tumor - ↓ Renin ... diagnosis #Algorithm #differential ... #potassium #nephrology
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Hypokalemia - Differential ... Renovascular HTN, Renin ... #Hypokalemia #Differential ... Algorithm #causes #potassium
Algorithm for patients with hypokalemia on the basis of the potassium-to-creatinine ratio in the urine
Urine K+
the basis of the potassium-to-creatinine ... blood volume • ↑ Renin ... artery stenosis, Renin ... hypokalemia #urine #potassium ... #differential #