8 results
Hyponatremia (<135 mEq/L) is a common electrolyte abnormality caused by an excess of total body water
Hypovolemia #EBV #potomania
Diagnostic Approach to Hyponatremia
Box A:
 • Normo/hyperosmolar Hyponatremia: Glucose, Mannitol, Glycine, Contrast media, Maltose
 • Pseudohyponatremia:
Na intake, Beer Potomania
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 • Tea and Toast Syndrome, Beer Potomania - Low solute
Syndrome, Beer Potomania
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
solute intake, Beer potomania
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Polydipsia - Beer Potomania
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
polydipsia - Beer potomania
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
solute intake (Beer potomania
Hyponatremia - Differential Algorithm
Isotonic Hyponatremia: Hyperlipidemia, Hyperproteinemia, Recent TURP
Hypotonic Hyponatremia: 
 • Hypovolemia: Diuretics/Nephropathies, Vomiting, Diarrhea,
Euvolemia: SIADH, Beer Potomania