932 results
Drugs that Impair Renal Potassium Excretion 

Decreased ENaC channel function: Amiloride, Triamterene, Pentamidine
Decreased Aldosterone Synthesis: Heparin,
Drugs that Impair ... Renal Potassium ... Receptor Function: Cyclosporine ... Pharmacology #Impaired #Potassium
Causes of Hyperkalemia
Pseudohyperkalemia
 - Tourniquet use
 - Hemolysis (in vitro)
 - Leukocytosis
 - Thrombocytosis
Intra- to extracellular
load - Potassium ... drugs - Transfusion ... Renal failure* - Drugspotassium-sparing ... anti-inflammatory drugs ... receptor blockers, cyclosporine
Mechanisms of Drug-Induced Hyperkalemia 
 • Direct renin inhibitor (Aliskiren)
 • Renin release inhibition (NSAIDs, Beta-Blockers)
Mechanisms of Drug-Induced ... Inhibitors (Tacrolimus, Cyclosporine ... #pharmacology #potassium
Rifampin Drug Interactions and Monitoring
Rifampin Drug Interactions of Major Clinical Significance:
Oral anticoagulants, Oral contraceptives, Cyclosporine, Digitoxin,
Rifampin Drug Interactions ... Monitoring Rifampin Drug ... contraceptives, Cyclosporine ... Verapamil Rifampin Drug ... Haloperidol, Losartan potassium
Causes of Hypomagnesemia
Redistribution:
 - IV glucose
 - Correction of diabetic ketoacidosis
 - IV hyperalimentation
 - Refeeding
osmotic diuresis - Potassium ... renal disease Drugs ... Calcineurin inhibitors (cyclosporine ... #medications #drugs
Causes of Hypomagnesemia
 • Redistribution: IV glucose, Correction of diabetic ketoacidosis, IV hyperalimentation, Refeeding after starvation,
osmotic diuresis, Potassium ... renal disease • Drugs ... Calcineurin inhibitors (cyclosporine
Causes of Hyperkalemia
l. Pseudohyperkalemia
  A Cellular efflux; thrombocytosis, erythrocytosis, leukocytosis, in vitro hemolysis
  B.
Drugs: nonsteroidal ... anti-inflammatory drugs ... inhibitors, ß-blockers, cyclosporine ... Drug-associated: ... Diagnosis #High #Potassium
Hyperkalemia: Diagnostic algorithm
Decreased renal potassium excretion
 • Acute renal failure
 • Chronic renal failure
 • Drugs
Increased
Decreased renal potassium ... renal failure • Drugs ... Increased potassium ... uropathies • Drugs ... hyperplasia • Drugs
Drugs causing hyperkalemia
 • Impaired release of renin: NSAIDs, Beta blockers, Cyclosporine, tacrolimus, Diabetes, Elderly
 •
Drugs causing hyperkalemia ... Beta blockers, Cyclosporine ... Drospirenone #Drugs
Here’s a review of the Renin-Angiotensin-Aldosterone system (RAAS)

This is a very common pathway that clinicians should
with excreting potassium ... RAAS inhibiting drug ... will increase potassium ... , which is why potassium ... RAAS inhibiting drugs