12 results
Drugs that Impair Renal Potassium Excretion 

Decreased ENaC channel function: Amiloride, Triamterene, Pentamidine
Decreased Aldosterone Synthesis: Heparin,
that Impair Renal Potassium ... Aldosterone Release: ACE ... #Hyperkalemia #Pathophysiology ... #Pharmacology # ... Impaired #Potassium
Mechanisms of Drug-Induced Hyperkalemia 
 • Direct renin inhibitor (Aliskiren)
 • Renin release inhibition (NSAIDs, Beta-Blockers)
Angiotensin-converting enzyme (ACE ... • Exogenous (KCL ... differential #diagnosis #pathophysiology ... #pharmacology # ... potassium #medications
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
Chloride Algorithm Cl ... Kidney loss of Cl ... Cystic fibrosis Cl ... of sodium and potassium ... urine #Algorithm #nephrology
Hypochloremia - Differential Diagnosis Algorithm

Cause - Decreased Intake:
 • Low salt in diet
 • Exclusive D5W
Excessive vomiting - Metabolic ... increase may cause metabolic ... decrease may cause metabolic ... Diagnosis #Algorithm #Pathophysiology ... #Nephrology #Chloride
Gitelman Syndrome Pathophysiology
Gitelman Syndrome is a rare autosomal recessive salt-losing tubulopathy with a prevalence of 1-
Gitelman Syndrome Pathophysiology ... distal tubule. ↑ Nacl ... → Hypokalemia Metabolic ... Gitelman #Syndrome #Pathophysiology ... #nephrology #diagnosis
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
• NSAIDs • ACE ... • Recent IV potassium ... infusions) - Metabolic ... diagnosis #causes #potassium ... #high #nephrology
Causes of High-anion Gap and Non-anion Gap Metabolic Acidosis
Causes of High-anion Gap Acidosis:
 • Lactic acidosis
Non-anion Gap Metabolic ... Potassium-sparing ... ACE-Is and ARBs ... aniongap #NonGap #Metabolic ... diagnosis #causes #nephrology
Diuretics - Pharmacology

Thiazides diuretics:
 • Inhibit Na+ Cl- cotransporter in distal tubule
 • Chlorothiazide, Chlorthalidone, Indapamide,
Diuretics - Pharmacology ... • Inhibit Na+ Cl ... Piretanide Potassium ... #Diuretics #Pharmacology ... #nephrology #conversion
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
• NSAIDs • ACE ... • Recent IV potassium ... infusions) - Metabolic ... diagnosis #causes #potassium ... #high #nephrology
Diuretics and Agents Regulating Renal Excretion

Carbonic Anhydrase Inhibitors (Acetazolamide, Dichlorphenamide)
 • Glaucoma
 • Epilepsy
 • Altitude
resistance • Metabolic ... Inhibitors of Na+K+2Cl ... Excretion #Diuresis #Nephrology ... #Pharmacology #