58 results
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Algorithm Extra-renal ... Low intake • Metabolic ... loss (Diarrhea) Renal ... Algorithm #causes #potassium ... #low #nephrology
Causes of Metabolic Alkalosis - Differential Diagnosis
Chloride depletion syndromes
 • Gastrointestinal losses
    -
Causes of Metabolic ... villous adenomas • Renal ... • Severe potassium ... depletion (serum potassium ... <2 mmol/L) #Metabolic
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting, NGT
Primary Metabolic ... , Gitelman Syndrome ... hyperaldosteronism • High PRA: Renal ... #Primary #Metabolic ... Diagnosis #Algorithm #nephrology
High Anion Gap Metabolic Acidosis (HAGMA) - Differential Diagnosis - GOLDMARK

Glycols - ethylene and propylene glycol
Oxoproline
High Anion Gap Metabolic ... with short bowel syndrome ... ketoacidosis Renal ... acids in advanced renal ... GOLDMARK #mnemonic #nephrology
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Primary Metabolic ... , Gitelman Syndrome ... hyperaldosteronism • High PRA: Renal ... aldosteronism #Metabolic ... Diagnosis #Algorithm #Nephrology
Drugs that Impair Renal Potassium Excretion 

Decreased ENaC channel function: Amiloride, Triamterene, Pentamidine
Decreased Aldosterone Synthesis: Heparin,
Drugs that Impair Renal ... Potassium Excretion ... Aldosterone Release: ACE ... Pathophysiology #Pharmacology ... #Renal
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
treated with IV potassium ... suggests extra-renal ... Pressure: - Metabolic ... #differential #potassium ... #nephrology #low
Hypokalemia Differential Diagnosis Algorithm
Hypertensive:
 • High Al, Low R - Primary aldosteronism
 • High Al, High
acid, Liddle's Syndrome ... R - Cushing's syndrome ... , Gitelman's syndrome ... Diagnosis #Algorithm #nephrology ... #causes #low #potassium
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
Kidney loss of Cl ... diuretic use, Bartter syndrome ... , Gitelman syndrome ... of sodium and potassium ... urine #Algorithm #nephrology
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
• NSAIDs • ACE ... • Recent IV potassium ... - Tumor lysis syndrome ... infusions) - Metabolic ... #high #nephrology